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Traffic Commission Main Gate Exit Lane TC-13B. CONSIDERATION OF RECOMMENDATION REGARDING MODIFICATIONS TO THE MAIN GATE VISITOR ENTRANCE. City Manager Nealis reported that the Traffic Commission has recommended the addition of traffic islands to the main gate entrance to improve traffic safety by requiring visitors to turn when entering rather than merging into the area. This modification will cost approximately $1200 and is to be included in the hardscape plan. Councilmember Pernell moved adoption of the recommendation, Mayor Pro Tem Murdock seconded and the motion passed without objection. I _ 4 C\ -n Co •.)N kk Tas 511'99, GLENN R. WATSON ROBERT O. SEVERLY HARRY L GERSHON DOUGLAS W. ARGUE MARX L LAMKEN ARNOLD SIMON RICHARD H. DINEL DAROLD D. PIEPER FRED A. FENSTER THOMAS A. FREIBERO. JR. ALLEN E. RENNETT STEVEN L. DORSEY WILLIAM L STMW2 ROBERT M. OOLOFRIED ANTHONY B. DREWRY MITCHELL E. ABBOTT TIMOTHY L NEUFELO ROBERT P. DE METER GREGORY W. STEPANCICH ROCHELLE BROWNE DONALD STERN MICHAEL JENKINS WILLIAM B. RUOELL DAVID L COHEN TERESA R. TRACY OUINN M. BARROW TERRY A. TRUMBULL COLEMAN J. WALSH. JR JOHN A. BELCHER JEFFREY A RABIN WILLIAM K. KRAMER CURBS L COLEMAN STEVEN H. KAUFMANN MARSHA .ONES MOUTRIE GREGORY M. KUNERT AMANDA P. SUEBKIND WILWM E. MATBUMURA scan' WEISLE THOMAS M. JIMBO MICHELE BEAL BAGNERIS ROBERT C. CECCON PAMELA A. ALBERS SAVRE WEAVER KEVIN O. ENNIS ROBIN D. HARRIS MICHAEL EBRNDA EPMT M. COGAN LAURENCE 0. WIENER DAVID P. WARE CHRIST HOGIN STEVEN R. ORR DEBORAH R. HAKMAN SCOTT K BNINTANI MICHAEL O. COLANTUONO JACK B. SHOLKOFF DAVID A SUCHEN DMT'L T. TESHIMA CHRISTINA R MELTZER BIRGRA HUBER ROBIN D. WEINER BbKN T. ABAMURA ADAM P. BTREISAND TAYLOR L FITTMAURICE DAVID M. FLEISHMAN KAYSER O. BUMF STEVEN L HOLCOMB RICHARDS, WATSON & GERSHON ATTORNEYS AT LAW A PROFESSIONAL CORPORA IggiSan CITY January 21, 1992 8y' B Mr. Craig Nealis City Manager City of Rolling Hills 2 Portuguese Bend Road Rolling Hills, California 90274 Re: Stop Sign Dear Mr. Nealis: HARD RICHARDS (1918.1088) JAN 2 311992 THIRTY-EIGHTH FLOOR 333 SOUTH HOPE STREET LOS PM3ELES. CAUFORNIA 90071-1489 OLLING HIU.5(213) 026-8404 TELEOOPIER (213) 828-0078 You have asked whether the City may erect a at the exit gate of the main exit from the City, just moving arm, where Portuguese Bend Road intersects the driveway. 0562382 OUR FILE NUMBER R6980-001 stop sign before the City Hall Section 10.52.020 of the Municipal Code would appear to allow erection of a stop sign at that location.. ery uly yoy1rs, MJ:alr 0562382. k OLD BUSINESS (Continued) CONSIDERATION OF TRAFFIC CONTROL ALTERNATIVES AT MAIN GATE. Chairwoman Leeuwenburgh provided a report to the Commission with regard to the city of Rolling Hills Estates' proposals for the intersection of Palos Verdes Drive North and Portuguese Bend Road/Rolling Hills Road. She reported her experience observing speeding vehicles in the vicinity and the deterrent effect of the speed board; explained the signal cycle at the intersection; observed that cars currently move fairly well through the intersection during the morning hours. She explained that the city of Rolling Hills Estates currently has funding for the $15,000 required for an engineering study, however, the $100,000 required for the work may not be available until the next fiscal year. She pointed out that many Rolling Hills Estates residents in the vicinity were opposed to the pass through lane proposal and that should Rolling Hills Estates implement "no right turn on red" at Portuguese Bend Road, the palm tree would have to be removed and the road widened. In response to Chairwoman Leeuwenburgh, Deputy Traffic Engineer Itagaki stated that experience had shown traffic clears fairly well at the intersection, however, the city could ask Rolling Hills Estates for additional green seconds to exit Rolling Hills. There followed discussion regarding the provision of an additional right turn lane into Rolling Hills. Commissioner Wiener expressed his concern that there could be a conflict of interest in Willdan Associates representing both cities. Deputy Traffic Engineer Itagaki responded that Rolling Hills Estates is not required to utilize Willdan for their study. In response to Commissioner Stringfellow, Deputy Nakaji agreed that enforcement of "no right turn on red" would be very difficult. City Manager Nealis delivered the Staff Report and recommendation from the Traffic Engineer relative to the main gate. He concluded that should the Commission wish to take action, a "stop" sign could be recommended at the location. He elaborated that tiger teeth, bumps or dips should not be considered for traffic control devices at the location. Chairwoman Leeuwenburgh expressed concern that the new parking spaces to be located at the tennis courts in conjunction with the hardscape plan would need to be analyzed for their impact upon traffic in the area. Thoughts were expressed regarding the necessity for a new traffic engineering study following the implementation of the hardscape plan. t _ Traffic Commission Minutes . January 17,1992 -4- Community Association Architectural Inspector Roger Vink suggested a temporary "stop" sign be placed. Chairwoman Leeuwenburgh indicated that the city would be exposed to liability if a temporary sign were placed and then at a later point in time withdrawn from the location. Commissioner Stringfellow indicated that the objective of the modification of the main gate exit is to ensure safe pedestrian traffic between the City Administration facility, the gate house and the tennis court area. Comnssioner Welbourn reiterated recent radar gun measurements he had taken regarding the speed of vehicles at 2:45 p.m. and 5:00 p.m. on a weekday (Thursday) of cars travelling toward Palos Verdes Drive North on Portuguese Bend Road with the gate in the "open" position. Commissioner Welbourn reported that seventy percent of the vehicles travel at less than 20 m.p.h. twenty five percent between 20-30 m.p.h. and one car travelled at 32 m.p.h. and one car at 41 m.p.h. Community Association Architectural Inspector Roger Vink indicated that he would remodify the gate, if a "stop" sign were to be placed there, so that the gate would raise upon a vehicle driving over the pad without the necessity for the gate arm to reach a fully extended "down" position after each car passes. Following discussion, Commissioner Wiener moved to approve placement of the "stop" sign for exiting traffic at the main gate on Portuguese Bend Road with the following conditions: o That the gate is to be operated in a fully functional mode at all times and should not be left open unless in a state of disrepair. o The Community Association shall modify the control of the gate, eliminating the necessity for the gate to reach a full "down" position after the passage of each vehicle. Commissioner Welbourn seconded the motion. The City Manager was directed to address the issue of the placement of the "stop" sign with the City Attorney for his concurrence that the city has the authority to place a "stop" sign at the location. This decision was also to be expressed to the Los Angeles County Sheriff's Department. The motion carried (4-1-0). Commissioner Virtue abstained. • Cu, 0/ /Co[�'n9, INCORPORATED JANUARY 24, 1957 NO. 2 PORTUGUESE BEND ROAD ROLLING HILLS, CALIF. 90274 (213) 377-1521 FAX (213) 377-7288 TO: PEGGY MINOR, ROLLING HILLS COMMUNITY ASSOCIATION MANAGER FROM: CRAIG IL NEALIS, CITY MANAGER SUBJECT: STOP SIGN TO BE PLACED AT PORTUGUESE BEND ROAD ADJACENT TO THE MAIN GATE DATE: JANUARY 28, 1992 At the regular meeting of the City Council held Monday, January 27, 1992, City Council members unanimously approved a recommendation of the Traffic Commission for placement of a "Stop" sign at Portuguese Bend Road adjacent to the main gate exit. We have attached a copy of the Staff Report which was presented to the City Council relative to this project. Conditions adopted by the City Council and the Traffic Commission include that the gate arm shall be modified so that it does not need to come to a fully closed position during each gate operation cycle. Further, the gate shall be maintained in an operational fashion at all times (not left open during rush hour traffic) so not to provide mixed messages to motorists using this roadway. Of course, during times of repair, this may be unavoidable. Your cooperation with this project has been appreciated. Should you wish to discuss this further, please do not hesitate to contact this office. CN:ds C y 0/ Rolling _AA INCORPORATED JANUARY 24, 1957 NO. 2 PORTUGUESE BEND ROAD ROLLING HILLS, CALIF. 90274 (213) 377-1521 FAX (213) 377-7288 Agenda Item No: 5.13 Mtg. Date: 1-27-91 TO: HONORABLE MAYOR AND MEMBERS OF THE CITY COUNCIL FROM: CRAIG It NEALIS, CITY MANAGER SUBJECT: CONSIDERATION OF TRAFFIC COMMISSION RECOMMENDATION RELATIVE TO A STOP SIGN TO BE PLACED AT PORTUGUESE BEND ROAD ADJACENT TO THE MAIN GATE EXIT DATE: JANUARY 27, 1992 At the regular Traffic Commission meeting held Friday, January 17, 1992, Traffic Commission members, by a 4-0-1 vote (Commissioner Virtue abstained) recommended that the City Council approve the placement of a "Stop" sign at the gate for exiting traffic on Portuguese Bend Road. A copy of the Report presented to the Traffic Commission is attached for City Council review. CN:ds C,o/f2o/[i,iltt% INCORPORATED JANUARY 21, 1937 NO. 2 PORTUGUESE BEND ROAD ROLLING HILLS. CALIF. 90271 1213) 377-1521 FAX. 1213) 377.7288 Agenda Item No: 1+ A Mtg. Date: 1-17-92 TO: HONORABLE CHAIRPERSON AND MEMBERS OF THE TRAFFIC COMMISSION FROM: CRAIG R. NEALIS, CITY MANAGER SUBJECT: TRAFFIC CONTROL ALTERNATIVES AT MAIN GATE DATE: JANUARY 17, 1992 Attached to this Staff Report is a memorandum prepared by Deputy Traffic Engineer Joanne Itagaki addressing traffic control alternatives at the main gate. This item was originally considered by the Traffic Commission in July. A copy of the July 3, 1991 memorandum issued by then Deputy Traffic Engineer Tom Sorrentino is also attached to this report. CN:ds cRocuny dill Community o<<,soccation 4 cI anelo 9atos (Ran NO. 2 PORTUGUESE BEND RO. • ROLLING HILLS. CALIF. 90274 (213) 377.1521 ROLLING HILLS November 19, 1991 CI Honorable Mayor Godfrey Pernell Rolling Hills City Council 2 Portuguese Bend Road Rolling Hills, CA. 90274 Re: Main Gate Exit CALIFORNIA DECle - CITY OF rNG HILLS • Dear Mayor Pernell: Due to a substantial.increase in traffic during peak hours, individual raising and lowering of the gate arm has become impractical. Frequent damage has led to numerous expensive repairs, rendering the gate inoperable. Often when the gate arm is not functioning, unauthorized drivers enter through the exit lane. To resolve these problems, we propose to install a 'tiger teeth' type of tire barrier in the exit lane. This solution has proven effective in other communities. We notified the City's Traffic Commission'almost a year ago that we were considering this action and request the City's cooperation in solving this problem. Very% truly yours, 4,� 4 .e/GG2 i1 ( resident Bard of Directors d. To: From: Craig R. Neale City Manager Joanne Itagaki 9.49 Deputy Traffic Engineer Date: January 9, 1992 Subject: TRAFFIC CONTROL ALTERNATIVES AT MAIN GATE BACKGROUND During its July 19, 1991 meeting, the Traffic Commission delayed any decision on additional traffic controls being implemented at the City's main gate. This delay was prompted by the traffic study for the high school consolidation and the anticipated signal timing changes at Palos Verdes Drive North (PVDN) and Portuguese Bend Road. Since the July meeting, the signal timing changes at PVDN and Portuguese Bend Road have been implemented. Therefore, this item bas been brought before the Traffic Commission The memorandum prepared on July 3, 1991, is attached for the Commission's reference. DISCUSSION Field review of the main gate operations during the morning peak hour (7:30 through 8:30 an) indicated an average signal cycle length of approximately 125 seconds. Most of this time is dedicated to PVDN. However, adequate green time was given to Portuguese Bend Road to dear the stopped vehicles in one green phase. In the 1 hour observed, oaiy once did the stopped vehicles on Portuguese Bend Road not clear; one vehicle bad to stop and wait for the next cycle. During the field review, the exit gate was up. This allowed several vehicles to speed up to make the green light. Some vehicles also made it on the yellow light. A "Stop" sign in conjunction with a fully functional gate may reduce this tendency. Based on,my field review, the installation of a "Stop" sign at the main gate will not disrupt the signal operation at PVDN and Portuguese Bend Road. The signal cycle length and operation should snll accommodate vehicles on Portuguese Bend Road. January 9, 1992 Page 2 Therefore, the installation of a "Stop" sign and "Stop Ahead" markings should be considered as a legitimate traffic control alternative at this location. The concerns expressed in the July 3, 1991 memorandum ("DIP; "Slow" markings; and tiger teeth) are not considered as viable traffic control alternatives at this time. The July memorandum discusses these items in detail. It should be noted that, if the main gate is not operational, the proposed 'Stop' sip may be disregarded by motorists. This is due to the fact that they are accustomed to passing through the gate without stopping when the gate is not operationaL Attachment JCI:lss 55432/1002/066 trans2\m\m3 $E MORANDL14 To: Craig R. Nealis Qty Manager From: Tom SorrentinoT IC Deputy Traffic Engineer Date: July 3, 1991 Subject: TRAFFIC CONTROL ALTERNATIVES AT MALE GATE BEQUEst The Traffic Commission requested the staff evetate several suggested alternatives to convoi traffic at the main gate. Tne request is in response to concerns raised regarding the operation of the new eit gate. BACKGROUND A new gate was recently installed e the Maio Gate •>ct, which requires that drivers come to almost a complete stop before the gate raises. This is similar to the operation of the Crenshaw gate. Concern has been raised that motorists are approachsing the gale a: a high rate of speed, assuming it wil raise prior to them rtaehing it. Also, as has bee_ the case, r_otorists speed up, attempting to catch the green light at Palos Verdes Drive Novi to avoid lung delays. Several suggestions wee trade to control exiting traffic. These include: • installing a 'DIP' in advance of the gate; • stop signs; • 'SLOW markings; and • tiger teeth. DISCUSSION Installing a 'DIP' (cr, similarly, speed humps) in advance of the gate is not recommended as a way to control speeds of exiting vehicles. This gate is on the main access road to and from the City, and therefore, bas the highest volumes of traffic passing through it. Dips (or humps) should only be considered on low•volume residential streets that are not pan of the City's primary circulation network. In addition, these would have adverse impacts on certain vehicles (trucks and motorcycles) and may impede emergency vehicles. July 3, 1991 Page 2 The ust of 'Stop' sign` net con::0i tra.. c exiting tae gate aoul: he appropriate for se •era reasons. Firs:, !t re Jrjrccc to u, erati:n of the gate. wick: requires that set'cie; cone to t complete stop ric: to is ru:si32, Second, it is a relattely shop, distance from the intersection o! Po,n.g.esc 8:rc Roach and Saddleback Road, %htie5 is also controlled by stop s:gtss There:o"e, seeing the stop sign up ahead, motorists would tend to ma1taLn a Slower speed as they approach the gate. In addition, it world be consistent with the ope: aticn of the Crenshaw gate exit, which is also stop controlled A potential adverse impact of the stnp sign is that, motorists approaching the gate may he focusing on the franc sfg;a: a: Pesos Verdes Drive North and may to: pay attention to the stop sign. Typct.ily, stop signs are not installed immediately preceding a traffic signal or. the same road for ;hi; reason. However, this is a unique siruatfon, since it is a pnvat:•gated street and violation of the stop sign would most likely result in damage to the gate. I: would be recommended to install advance 'Stop Ahead' sip and r=ankings in conjunction with the stop sins. The use of "SLOW advance pavement aaridngs should be viewed as an alternative to "Shop" and top Ahead' signs. Wt.je the "SLOW masking itself may prove to be icf'ec:ive, a "SLOWGATE AHEAD' mar;c-eg and accompanying sign would be an appropriate .alternative. The installation of 'Tiger Teeth" in tree exi; lane does not address the speed issue, but rather another concern raised tht. some (= patine. drivers use the exit lane as an entrance to bypass the guard. This is tot recommended at this time, but rather should be cocsidered ts a last resort. Besides, entering the e..rit late would require cashing through the gate If this is idea::5ed es a coasistet: occurrence, more restrctive measures should be considered. flCOMNIENDATlO his recommended that "Stop" (and 'Stop Ahead") signs and pavement markings be instated at (and in advance of the main gate to control exiting vehicles. TS:mk 55432/1002/066 transl\m\m44 TC 13 City oiled/hi ilia INCORPORATED JANUARY 24, 1957 NO. 2 PORTUGUESE BEND ROAD ROLLING HILLS, CALIF. 90274 (213)377.1521 FAX (213) 377-7288 Agenda Item No: 5.3 Mtg. Date: 1-27-91 TO: HONORABLE MAYOR AND MEMBERS OF THE CITY COUNCIL FROM: CRAIG R. NEALIS, CITY MANAGER SUBJECT: CONSIDERATION OF TRAFFIC COMMISSION RECOMMENDATION RELATIVE TO A STOP SIGN TO BE PLACED AT PORTUGUESE BEND ROAD ADJACENT TO THE MAIN GATE EXIT DATE: JANUARY 27, 1992 At the regular Traffic Commission meeting held Friday, January 17, 1992, Traffic Commission members, by a 4-0-1 vote (Commissioner Virtue abstained) recommended that the City Council approve the placement of a "Stop" sign at the gate for exiting traffic on Portuguese Bend Road. A copy of the Report presented to the Traffic Commission is attached for City Council review. CN:ds MC 13 C , 0/ ie0i ng INCORPORATED JANUARY 24, 1957 NO. 2 PORTUGUESE BEND ROAD ROLLING HILLS, CALIF. 90274 (213)377-1521 FAX(213) 377.7288 Agenda Item No: )+ A Mtg. Date: 1-17-92 TO: HONORABLE CHAIRPERSON AND MEMBERS OF THE TRAFFIC COMMISSION FROM: CRAIG R. NEALIS, CITY MANAGER SUBJECT: TRAFFIC CONTROL ALTERNATIVES AT MAIN GATE DATE: JANUARY 17, 1992 Attached to this Staff Report is a memorandum prepared by Deputy Traffic Engineer Joanne Itagaki addressing traffic control alternatives at the main gate. This item was originally considered by the Traffic Commission in July. A copy of the July 3, 1991 memorandum issued by then Deputy Traffic Engineer Tom Sorrentino is also attached to this report. CN:ds cRotrin9 a Community c4ssociation of canc%o afvs (Rats No. 2 PORTUGUESE BEND Ro. • ROLLING HILLS. CALIF-. 90274 (213) 377-1521 ROLLING HILLS November 19, 1991 Honorable Mayor Godfrey Pernell Rolling Hills City Council 2 Portuguese Bend Road Rolling Hills, CA. 90274 CALIFORNIA UEC —c r _i. CIIYNOF LING HILLS Re: Main Gate Exit Dear Mayor Pernell: Due to a substantial increase in traffic during peak hours, individual raising and lowering of the gate arm has become impractical. Frequent damage has led to numerous expensive repairs, rendering the gate inoperable. Often when the gate arm is not functioning, unauthorized drivers enter through the exit lane. To resolve these problems, we propose to install a "tiger teeth" type of tire barrier in the exit lane. This solution has proven effective in other communities. We notified the City's Traffic Commission almost a year ago that we were considering this action and request the City's cooperation in solving this problem. Very truly yours, yeti i¢�holas" *6rnberger,/President Bdard of Directors c�c To: Craig R. Nealis City Manager From: Joanne Itagaki Deputy Traffic Engineer Date: January 9, 1992 Subject: TRAFFIC CONTROL ALTERNATIVES AT MAIN GATE BACKGROUND During its July 19, 1991 meeting, the Traffic Commission delayed any decision on additional traffic controls being implemented at the City's main gate. This delay was prompted by the traffic study for the high school consolidation and the anticipated signal timing changes at Palos Verdes Drive North (PVDN) and Portuguese Bend Road. Since the July meeting, the signal timing changes at PVDN and Portuguese Bend Road have been implemented. Therefore, this item has been brought before the Traffic Commission. The memorandum prepared on July 3, 1991, is attached for the Commission's reference. DISCUSSION Field review of the main gate operations during the morning peak hour (7:30 through 8:30 a.m.) indicated an average signal cycle length of approximately 125 seconds. Most of this time is dedicated to PVDN. However, adequate green time was given to Portuguese Bend Road to clear the stopped vehicles in one green phase. In the 1 hour observed, only once did the stopped vehicles on Portuguese Bend Road not clear; one vehicle had to stop and wait for the next cycle. During the field review, the exit gate was up. This allowed several vehicles to speed up to make the green light. Some vehicles also made it on the yellow light. A "Stop" sign in conjunction with a fully functional gate may reduce this tendency. Based on my field review, the installation of a "Stop" sign at the main gate will not disrupt the signal operation at PVDN and Portuguese Bend Road. The signal cycle length and operation should still accommodate vehicles on Portuguese Bend Road. January 9, 1992 Page 2 Therefore, the installation of a "Stop" sign and "Stop Ahead" marlciags should be considered as a legitimate traffic control alternative at this location. The concerns expressed in the July 3, 1991 memorandum ("DIP," "Slow" markings, and tiger teeth) are not considered as viable traffic control alternatives at this time. The July memorandum discusses these items in detail. It should be noted that, if the main gate is not operational, the proposed "Stop" sign may be disregarded by motorists. 'Phis is due to the fact that they are accustomed to passing through the gate without stopping when the gate is not operational. Attachment JCI:lss 55432/1002/066 trans2\m\m3 To: Craig R. Nealis City Manager From: Tom Sorrentino -7 Deputy haf& Engtheer Date: July 3, 1991 Subject: TRAFFIC CONTROL ALTERNATIVES AT MALE GATE REQUEST The Traffic Commission. requested that staff evaluate several suggested alternatives to control traffic at the main gate. Tne request is in response to concerns raised regarding the operation of the new exit gate. R ♦CKGRtL A new gate was recently installed at the Math Gate exit, which requires that drivers come to almost a complete stop before the gate raises. This is similar to the operation of the Crenshaw gate. Concern has been raised that motorists arc approaching the gate a: a high rate of speed, assuming it will raise prior to them reaching it. Also, es has been the c?ce, motorists speed up, attempting to catch the green light at Palos Verdes Drive North to avoid long delays. Several suggestions were trade to cortrol exiting traffic. These include: • installing a "DIP" in advance of the gate; • stop signs; • "SLOW" markings; and • tiger teeth. DISCUSSION Installing a "DIP" (or, similarly, speed humps) is advance of the gate is not recommended as a way to coauol speeds of exiting vehicles. This gate is on the main access road to and from the City, and therefore, has the highest volunes of traffic passing through it. Dips (or humps) should only be considered on low•volume residential streets that are not part of the City's primary circulation network. In addition, these would have adverse impacts on certain vehicles (trucks and motorcycles) and may impede emergency vehicles. July 3, 1991 Page 2 The use of 'Stop signs in control drat" .c outing the gate could be appropriate for se:. era: reasons. First, ft rdriorcc; the ope.ar'.n of the gate. which requires that ve.!cies come to I. complete stop rot to is ;uJsiag Second, it is a relattely shoe, &stance from the intersection of Po•r.glese Wend Road and Saddleback Road, which is also controlled by stop signs There:o"e, seeing the stop sign up ahead, motorists world tend to maintain a sower speed as they approach the gate. In addition, it would be consistent with the ope: aticn of the C retshaw gate exit, which is also stop controlled. A potential adverse impact of the stop sign is that, motorists approaching the gate may he focusing on the traffic signal a: Palos Verdes Drive North and may no: pay attention to. the stop sign. Typ ict:ly, stop signs are not installed immediately preceding a traffic signal or. the same road for till; reason. However, this is a unique situation, since it is a privat:.gated street and violation of the stop sign would most likely result in damage to the gate. It would be recommended to install advance "Stop :head" slime and >=arkings in conjunction with the stop sips. The use of "SLOBW" advance pavement maridags should be viewed as an alternative to "Stop"" and "Stop Ahead" signs While the "SLOW rnar>atg itsed' may prove to be ineffective, a "SLOWGATE Al -LEAD" marking and accompanying sign would be an appropriate.. alternative. The installation of 'Tiger Teeth" in the exit lane does not address the speed issue, but rather another concern raised tilt: some uapatiere. drivers use the exit lane as az entrance to bypass the guard. This is not recommended at this time, but rather should be considered as a last resort. Besides, entering the etdt lane would require crashing through the gate If this is identified as a consistent occurrence, more restrictive measures should be considered. RECOMMENDATION It is recommended that "Stop' (and "Stop Ahead") signs and pave tent markings be installed at (and in advance of) the main gate to control exithig vehicles. TS:mk 55432/1002/066 transl\m\m44 TC t - t, o/ Rollins. Jailed INCORPORATED JANUARY 24, 1957 NO. 2 PORTUGUESE BEND ROAD ROLLING HILLS, CALIF. 90274 (213) 377-1521 FAX (213) 377-7288 Agenda Item No: 1+ A Mtg. Date: 1-17-92 TO: HONORABLE CHAIRPERSON AND MEMBERS OF THE TRAFFIC COMMISSION FROM: CRAIG R. NEALIS, CITY MANAGER SUBJECT: TRAFFIC CONTROL ALTERNATIVES AT MAIN GATE DATE: JANUARY 17, 1992 Attached to this Staff Report is a memorandum prepared by Deputy Traffic Engineer Joanne Itagaki addressing traffic control alternatives at the main gate. This item was originally considered by the Traffic Commission in July. A copy of the July 3, 1991 memorandum issued by then Deputy Traffic Engineer Tom Sorrentino is also attached to this report. CN:ds c?offin9 Jars Community c/floatation of cRanafio cPa%s `Veu&s No. 2 PORTUGUESE BEND RD. • ROLLING HILLS, CALIF. 90274 (213) 377-1521 ROLLING HILLS November 19, 1991 Honorable Mayor Godfrey Pernell Rolling Hills City Council 2 Portuguese Bend Road Rolling Hills, CA. 90274 Re: Main Gate Exit Dear Mayor Pernell: CALIFORNIA yglERW):,1! DEC - 2 1991 CITY. OF, RCNG HILLS By - Due to a substantial increase in traffic during peak hours, individual raising and lowering of the gate arm has become impractical. Frequent damage has led to numerous expensive repairs, rendering the gate inoperable. Often when the gate arm is not functioning, unauthorized drivers enter through the exit lane. To resolve these problems, we propose to install a "tiger teeth" type of tire barrier in the exit lane. This solution has proven effective in other communities. We notified the City's Traffic Commission almost a year ago that we were considering this action and request the City's cooperation in solving this problem. Very truly yours, idholas'3°16rnberger,//President BBdard of Directors Yc _i► MORANDLTM To: Craig R. Nealis City Manager From: Joanne Itagald n Deputy Traffic Engineer 9 Date: January 9, 1992 Subject: TRAFFIC CONTROL ALTERNATIVES AT MAIN GATE BACKGROUND During its July 19, 1991 meeting, the Traffic Commission delayed any decision on additional traffic controls being implemented at the City's main gate. This delay was prompted by the traffic study for the high school consolidation and the anticipated signal timing changes at Palos Verdes Drive North (PVDN) and Portuguese Bend Road. Since the July meeting, the signal timing changes at PVDN and Portuguese Bend Road have been implemented. Therefore, this item has been brought before the Traffic Commission. The memorandum prepared on July 3, 1991, is attached for the Commission's reference. DISCUSSION Field review of the main gate operations during the morning peak hour (7:30 through 8:30 a.m.) indicated an average signal cycle length of approximately 125 seconds. Most of this time is dedicated to PVDN. However, adequate green time was given to Portuguese Bend Road to clear the stopped vehicles in one green phase. In the 1 hour observed, only once did the stopped vehicles on Portuguese Bend Road not clear; one vehicle had to stop and wait for the next cycle. During the field review, the exit gate was up. This allowed several vehicles to speed up to make the green light. Some vehicles also made it on the yellow light. A "Stop" sign in conjunction with a fully functional gate may reduce this tendency. Based on my field review, the installation of a "Stop" sign at the main gate will not disrupt the signal operation at PVDN and Portuguese Bend Road. The signal cycle length and operation should still accommodate vehicles on Portuguese Bend Road. �i iu tl: Lu:11 Tj 3I5it. %i, LL.A\ January 9, 1992 Page 2 Therefore, the installation of a "Stop" sign and "Stop Ahead" markings should be considered as a legitimate traffic control alternative at this location. The concerns expressed in the July 3, 1991 memorandum ("DIP," "Slow" markings and tiger teeth) are not considered as viable traffic control alternatives at this time. The July memorandum discusses these items in detail. It should be noted that, if the main gate is not operational, the proposed "Stop" sign may be disregarded by motorists. This is due to the fact that they are accustomed to passing through the gate without stopping when the gate is not operational. Attachment JCI:lss 55432/1002/066 trans2\m\m3 ii. 3L 'U IJ •• • TELL'...' .IJJV�. MEMORANDUM To: Craig R. Nealis City Manager From: Tom Sorrentino , 1 Deputy Traffic Engineer Date: July 3, 1991 Subject: TRAFFIC CONTROL ALTERNATIVES AT MALE GATE BEQUEST The Traffic Commission requested that staff evaluate several suggested alternatives to control traffic at the main gate. Tne request is in response to concerns raised regarding the operation of the new exit gate. BACKGROSTED A new gate was recently installed at the Maio Gate e�ct, which requires that drivers come to almost a complete stop before the gate raises. This is similar to the operation of the Crenshaw gate. Concern bas been raised that motorists are approaching the gate a: a high rate of speed, assuming it will raise prior to then; reaching it Also, as has bee: the cese, motorist; speed up, attempting to catch the green light at Palos Verdes Drive Norm to avoid lung delays. Several suggestions were made to control exiting traffic. These include: • installing a 'DIP" in advance of the gate; • stop signs; • "SLOW" markings; and • tiger teeth. DISCUSSION Instaltinz a "DIP" (or, similarly, speed humps) in advance of the gate is not recommended as a way to control speeds of exiting vehicles. This gate is on the main access road to and from the City, and therefore, has the highest volumes of traffic passing through it. Dips (or humps) should only be considered on low•volume residential streets that are not part of the City's primary circulation network In addition, these would have adverse impacts on certain vehicles (trucks and motorcycles) and may impede emergency vehicles. u July 3, 1991 Page 2 ^1LLVl, .1 AP. The ust of "Stop' sigma ;n control tra c eating tun gate would he appropriate for se'.era:.reasons. Firs:, it r:frSrrccs :he operation of the gate, which requires that vehicles cone to t• complete stop p:ioi to is ra:siug Second, it is a relatively short distance froth the ictersectiot• of' Porn.giese Bend Roar! and Saddleback Road, which is also controlled by stop signs. Thereo-e, seeing the stop sign up ahead, motorists would tend to ma tain a slower speed as they approach. the gate. In addition, it would be consistent with the operation of the Crersbaw gate exit, which is also stop controlled. A potential adverse impac: a the stop sign is that, motorists approaching the gate may be focusing on the taft'c st:ie: a: Palos Verdes Drive North and may no: pay attention to, the stop sign. Typitt!y, stop signs are not installed immediately preceding a traffic signal or the same road for this reason. However; this is a unique situation, since it is a private -gated street and violation of the stop sign would most likely result is da.aage to the gate. 1: would be recommended to install advance "Step Ahead" sign` and marlcngs in conjunction with the stop signs. The use of "SLOWW" advance pavement markings should be viewed as an alternative to "Stop" and "Stop Ahead" signs. While the "SLOW' raarlatg itself may prove to be ietecrive, a "SLOW -GATE AHEAD" marking, and accompanying sign would be an appropriate.alternative. The installation of 'Tiger Teeth" in the exi; lane does not address the speed issue, but rather another concern raised the: some tmpatietr drivers use the exit lane as an entrance to bypass the guard. This is tot recommended at this time, but rather should be considered as a last resort. Besides, entering the exitlane would require crashing through the gate. If this is identified as a consistent occurrence, more restzicdve measures should be considered. RECOMMENDATION NDAT1ON It is recommended that "Stop' (and "Stop Ahead") signs and pavement marld.ngs be installed at (and in advance of) the main gate to conuol exiting vehicles. TS:ails 55432/1002/066 transt\m\m44 C ay o/ INCORPORATED JANUARY 24, 1457 GODFREY PERNELL Mayor GORDANA SWANSON Mayor Pro Tem GINNY LEEUWENBURGH Councilwoman JODY MURDOCK Councilwoman THOMAS F. HEINSHEIMER Councilman December 18, 1991 Mr. Nicholas Hornberger President Rolling Hills Community Association 1 Johns Canyon Road Rolling Hills, CA 90274 Dear Mr. H NO. 2 PORTUGUESE BEND ROAD ROLLING HILLS. CALIF. 90274 (213) 377.1521 FAX: (213) 377-7288 Thank you for your letter regarding the proposed traffic control barrier in the exit lane at the main gate. The City has a primary interest in the safety and security of its residents and is greatly concerned with traffic safety matters. In researching your original notification to the Traffic Commission "almost a year ago", the only communication on record is a memorandum from the Community Association Maintenance Foremen Roger Vink dated May 31, 1991 requesting input from the Traffic Commission regarding slowing the existing traffic. The matter was considered at the next Commission meeting on June 21, 1991 and an evaluation and recommendation was returned by our Deputy Traffic Engineer on July 3, 1991. A response made in less than a month from the time the request was received by the City. Not exactly a bureaucratic maze. I am enclosing a copy of the request and recommendation from our Deputy Traffic Engineer. I am sure you are aware that in order to be enforceable, traffic control measures must have a credentialed traffic engineer's blessing. In addition, unauthorized control measures could expose the City to unwarranted and unnecessary liability. ®Primed on Recycled Paoer. Page 2 Mr. Nicholas Hornberger The recommendations of the City Traffic Engineer were very specific and are still valid. The Association should strongly consider their adoption. The City is very responsive and willing to cooperate in these matters but they must be consistent with proper traffic engineering principles. Nick, I would be happy to discuss this or any other matters of community interest with you at your convenience. Give me a call. Sincerely, ayor GP:ds End: MINUTES OF THE REGr '9 MEETING OF .THE BOARD OF ^IRECTORS THI )LLING HILLS COMMUNITY A: :IATION NOVEMBER 21, 1991 Main Gate Exit Lane Mr. Roger Vink, Maintenance Foreman, reported that the Main Gate exit gate arm is continually being broken by speeding vehicles, and that posted warning signs are ignored by drivers. He further advised that a larger sign will be installed in an attempt to slow vehicles with the warning that the exit gate arm lowers after each vehicle. Mr. Vink stated that the Crest Gate has an exit stop sign which has been very effective in slowing traffic and suggested a stop sign be installed at the Main Gate exit lane, or possibly rumble bumps be installed. He further stated that he discussed the problem with the City Manager and was advised that it would be discussed at the next Traffic Committee meeting scheduled for January 16th. Director Schmit suggested that "tiger teeth' be installed as discussed in a previous Board meeting. Mr. Vink stated that the "tiger teeth" would cost approximately $2,200.00. Director Roberts expressed concern that rumble bumps would be disturbing to nearby residents. Mr. Frank Hill, 11 Cinchring Road, expressed concern that once the drivers get accustomed to the "tiger teeth" that it will not deter speeding and suggested the bump method be considered as it has proven effective in other gated communities. Director Schmit directed Mr. Vink to obtain another estimate for the "tiger teeth" installation. Following discussion, it was agreed by the Board that a letter be sent to the City advising of problems being experienced and methods suggested to solve them, requesting the City's expertise in the matter. The matter was held on the agenda. ADJOURNMENT The meeting was adjourned at 8:30 A.M. Assistant Secretary APPROVED: Vice President -3- c)%fL 1 Jfit dommunity ss.L,L:1ati,on of cRanc/io !Palos Nettles No. 2 PORTUGUESE BEND RD. • ROLLING HILLS. CALIF. 90274 (213, 377.1521 ROLLING HILLS November 19, 1991 Honorable Mayor Godfrey Pernell Rolling Hills City Council 2 Portuguese Bend Road Rolling Hills, CA. 90274 CALIFORNIA NG HILLS CITY OF. BY ----- Re: Main Gate Exit Dear Mayor Pernell: Due to a substantial increase in traffic during peak hours, individual raising and lowering of the gate arm has become impractical. Frequent damage has led to numerous expensive repairs, rendering the gate inoperable. Often when the gate arm is not functioning, unauthorized drivers enter through the exit lane. To resolve these problems, we propose to install a "tiger teeth" type of tire barrier in the exit lane. This solution has proven effective in other communities. We notified the City's Traffic Commission almost a year ago that we were considering this action and request the City's cooperation in solving this problem. Very truly yours, i holas'lfSrnbeinvikeirresident Board of Directors c7c -re- l3 Cu, o/ eo[[ing Jdi[[s INCORPORATED JANUARY 24, 1957 GODFREY PERNELL Mayor GOROANA SWANSON Mayor Pro Tem GINNY LEEUWENBURGH Councilwoman JODY MURDOCK Councilwoman THOMAS F. HEINSHEIMER Councilmen August 19, 1991 Mr. Douglas R. Prichard City Manager City of Rolling Hills Estates 4045 Palos Verdes Drive North Rolling Hills Estates, CA 90274 Dear Mr. Prichard: NO. 2 PORTUGUESE BEND ROAD ROLLING HILLS, CALIF. 90274 (213) 377.1521 FAX (213) 377-7288 Members of the Rolling Hills Traffic-Commissidi are considering alternatives to improve traffic safety at the=Portuguese Bend -Road -Win Gate -exit -from the City. In order to facilitate a smooth traffic operation we are eagerly awaiting the completion of the study of the intersection of Palos Verdes Drive North/Rolling Hills Road/Portuguese Bend Road which has been authorized by your City. We stand ready to assist you with whatever you may need to complete this study. Any updates you may be able to provide regarding the status of this study would be greatly appreciated. Thank you very much for your cooperation. Sincerely, Craig R. Nealis City Manager CN:ds ®Printed on Recycled Peoe•. --c-v3 MATTERS FROM MEMBERS OF THE TRAFFIC COMMISSION Commissioners Welbourn and Schmit welcomed Deputy Traffic Engineer Itagaki. Chairwoman Leeuwenburgh directed that a letter received from Mary Jo Mock, Traffic Control Committee, Miraleste Intermediate School Booster Club, regarding the potential termination of traffic guard services on Palos Verdes Drive East and the entrance to the school be placed upon the Agenda for the September meeting. In addition, Staff was directed to investigate current funding for this service. In response to Commissioner Wiener, .Commissioner Schmit stated that the Rolling Hills Community Association is planning the installation of a computer system which should prove to be very effective in logging non-decaled vehicles entering and exiting the City. Chairwoman Leeuwenburgh stated that she anticipated that the Neighborhood Church Christmas Tour would appear on the next Agenda. Commissioner Schmit suggested an upright warning sign be installed at the horse crossing on Georgeff Road. There-followed-brief-discussion-pertaining=to_improvements_tolthe=Main_Gate_area. City • 10 ManagerNealis=was directed -to -cause a stop _sign-and-road:marker_to_be_placed at -the Main Gate Entrance. 2. Los Angeles County Sheriff's Department Traffic Investigator John Nakaji reported with regard to speed regulation. At 10:00 a.m. Chairwoman Leeuwenburgh directed that the meeting be adjourned to a field inspection of Cinchring Road and 3 Eastfield. 1(ZPFvlc l.o -& & sstc %\llalq, 1 11 N�1TrS IC - OLD BUSINESS REPORT REGARDING TRAFFIC CONTROL ALTERNATIVES AT MAIN GATE Deputy Traffic Engineer Sorrentino outlined the Staff Report stating that Staff's recommendation would be for 'Stop' and 'Stop Ahead' sighs and pavement markings to be installed in advance of the main gate to control exiting vehicles. Acting Commissioner Stringfellow advocated the installation of a 'Stop' sign at the residents' entrance side of the main gate. Discussion followed regarding the Peninsula. Cities and School District Traffic Study prompted by the proposed High School consolidation. Deputy Traffic Engineer Sorrentino provided clarification of the sources of data to be utilized in the preparation of the study. The concept of a pedestrian walkway from the City Administration Building parking lot to the tennis courts was discussed. It was determined that the site would be included in a later field inspection. Chairwoman Leeuwenburgh commented that she would be concerned about installing very much in the way of traffic control in the subject area until the results of the aforementioned study were available. �KflFF\c CoMffiss,onl Hi Nvas 7/I?AI TC13 Cu, o//Colin, Jh/tt INCORPORATED JANUARY 24, 1957 NO. 2 PORTUGUESE BEND ROAD ROLLING HILLS, CALIF. 90274 (213) 377-1521 FAX: (213) 377-7288 Agenda Item No: 4.B Mtg. Date: 7-19-91 TO: HONORABLE CHAIRPERSON AND MEMBERS OF THE TRAFFIC COMMISSION FROM: CRAIG R. NEALIS, CITY MANAGER SUBJECT: TRAFFIC CONTROL ALTERNATIVES AT MAIN GATE DATE: JULY 19, 1991 At the regular meeting of the Traffic Commission held Friday, June 21, 1991, Committee Members directed Staff to further investigate traffic control alternatives for the main gate. As you recall, this action is in response to the refitting of the main gate crossing arm implemented by the Community Association. Attached to this Staff Report is a memorandum from Deputy Traffic Engineer Tom Sorrentino recommending that "Stop" and "Stop Ahead" signs and pavement markings be installed in advance of the main gate to control exiting vehicles. CN:ds MEMORANDUM To: Craig R. Nealis City Manager From: Tom Sorrentino ;/5 Deputy Traffic Engineer Date: July 3, 1991 Subject: TRAFFIC CONTROL ALTERNATIVES AT MALN GATE REOUESI The Traffic Commission requested that staff evaluate several suggested alternatives to control traffic at the main gate. The request is in response to concerns raised regarding the operation of the new exit gate. BACKGROUND A new gate was recently installed at the Main Gate exit, which requires that drivers come to almost a complete stop before the gate raises. This is similar to the operation of the Crenshaw gate. Concern has been raised that motorists are approaching the. gate at a high rate of speed, assuming it will raise prior to them reaching it. Also, as has been the. case, motorists speed up, attempting to catch the green light it Palos Verdes Drive North to avoid long delays. Several suggestions were made to control exiting traffic. These include: • installing a "DIP" in advance of the gate; • stop signs; • "SLOW" markings; and • tiger teeth. DISCUSSION Installing a "DIP" (or, similarly, speed humps) in advance of the gate is not recommended as a way to control speeds of exiting vehicles. This gate is on the main access road to and from the City, and therefore, bas the highest volumes of traffic passing through it. Dips (or humps) should only be considered on low -volume residential streets that are not part of the City's primary circulation network. In addition, these would have adverse impacts on certain vehicles (trucks and motorcycles) and may impede emergency vehicles. July 3, 1991 Page 2 The use of "Stop" signs to control traffic exiting the gate would be appropriate for several reasons. First, it reinforces the operation of the gate, which requires that vehicles come to a complete stop prior to it raising. Second, it is a relatively short distance from the intersection of Portuguese Bend Road and Saddleback Road, which is also controlled by stop signs. Therefore, seeing the stop sign up ahead, motorists would tend to maintain a slower speed as they approach the gate. In addition, it would be consistent with the operation of the Crenshaw gate exit, which is also stop controlled. A potential adverse impact of the stop sign is that, motorists approaching the gate may be focusing on the traffic signal at Palos Verdes Drive North and may not pay attention to the stop sign. Typically, stop signs are not installed immediately preceding a traffic signal on the same road for this reason. However, this is a unique situation, since it is a private -gated street and violation of the stop sign would most likely result in damage to the gate. It would be recommended to install advance "Stop Ahead" signs and markings in conjunction with the stop signs. The use of "SLOW" advance pavement markings should be viewed as an alternative to "Stop" and "Stop Ahead" signs. While the "SLOW" marking itself may prove to be ineffective, a "SLOWGATE AHEAD" marking and accompanying sign would be an appropriate alternative. The installation of "Tiger Teeth" in the exit lane does not address the speed issue, but rather another concern raised that some impatient drivers use the exit lane as an entrance to bypass the guard. This is not recommended at this time, but rather should be considered as a last resort. Besides, entering the exit lane would require crashing through the gate. If this is identified as a consistent occurrence, more restrictive measures should be considered. RECOMMENDATION It is recommended that "Stop" (and "Stop Ahead") signs and pavement markings be installed at (and in advance of) the main gate to control exiting vehicles. TS:mk 55432/1002/066 transl\m\m44 5P\ c/oftin9 c�/i.L''f Community si.ociation of cRancio glades No. 2 PORTUGUESE BEND RD. • ROLLING HILLS, CALIF. 90274 (213) 377-1521 ROLLING HILLS May 31, 1991 PER TO: Traffic Commission FROM: Roger Vink, Maintenance Foreman RE: Main Gate - Exit Lane CALIFORNIA New gates will be installed at the Main Gate during the first part 'of June. According to the traffic counts made during the past three or four years, traffic in and out of the gate has increased three -fold. The exit gate is an increasing problem with speeding traffic trying to make the light on Palos Verdes Drive North as it changes from yellow to red. Pedestrians, especially tennis players, are now at greater risk of being struck by speeding exit traffic. The new gates will operate in the same manner as the Crest gates. Unless exiting vehicles are forced to stop or slow down, it is not possible to ensure cars will be able to stop while the gate goes through programmed lowering motions. A Board Member has suggested that a slight dip on Portuguese Bend Road, before reaching the exit gate, will slow traffic down. Of course, appropriate signs and marking would be needed. The Association will appreciate any input the City Traffic Commission and Consultant, can give with respect to slowing the exit traffic. Presently, the exit gate is inoperative and when replaced by the new gates, will not be left open. With the old gate held in the ('open" position, we are vulnerable to trespassing with unauthorized people running through to enter the community. dc NEW BUSINESS MEMORANDUM FROM ROLLING HILLS COMMUNITY ASSOCIATION REGARDING MAIN GATE EXIT LANE Chairwoman Leeuwenburgh provided a description of the existing signal timing at Portuguese Bend Road and Palos Verdes Drive North causing traffic to be backed up beyond the gate. Further, she indicated that the City of Rolling Hills Estates is proposing new signal timing for that intersection and it might be best to withhold consideration on a possible stop sign or other implementation at the main gate until that signalization modification is completed. Community Association Manager Peggy Minor indicated that the new gate has been installed which forces cars to slow down when exiting the City to ensure greater safety for pedestrians in the area and that residents have complained when the existing gate is left up to accommodate rush hour traffic exiting the City. Further, unauthorized vehicles have been entering the City through the exit gate. Commissioner Schmit indicated that spikes which prevent illegal entry at that location might be a possibility and estimated the cost at $2,200. Discussion ensued regarding the merits of spikes at the location. Sergeant Thoms indicated that if spikes were to be installed they would need to be lighted at night to provide illumination for motorists. Deputy Traffic Engineer Tom Sorrentino indicated that special signs indicating possible damage to tires should also be added. Following discussion, it was the consensus of the Commission that the City Manager discuss the possibility of spikes and other options with the City Attorney and insurance provider and that the Deputy Traffic Engineer shall prepare a brief report citing the pros and cons of a stop sign at the location, spikes, or signage directing traffic to slow down. ;RAF -Fla ?1HisSION 49.1191 MINN -i-CS