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HomeMy WebLinkAboutAGENDA REPORT 1995 0705 CC REG ITEM 11FITEM c*TY ©F lyi�OpRi1K TO: +; The Honorable City Council p'Ralrt: Ken neth C. Gilbert, Director of public Works DATE: June 27, 1995 (Council Meeting 7 -5 -95) SULINC'.T: Discuss the Feasibility of Constructi q'raffic Signal at the Intersection of�Tierrjad Road and Moorpark Road. At its meeting of June 7, 1995, the City Council discussed the subject matter and then directed the City 'affic prepare a Traffic Signal Warrant 3ttidy for the Engineer to the City Council additional information purpose of providing prior to making a decision. DI3GII88�'tmr Attached for your reference as Exhibit 1, is a copy of the June 7th staff report on this matter_ . +� r Attached as Exhibit 2 is a copy of the Traffic Signal Warrant Study prepared by the City Traffic Engineer. 't 0 �r; .e Traffic Signal Warrant Study shoes that signal Warrants are met at this intersection. The study also strongly recap ends that a traffic actuated traffic signal instead of a "fixed -time" controll .controller ld installed installation of some traffic loop detectors and a traffic signal controller suitable for this type of operation. As mentioned in the June 7th report, a si Of the traffic at this intersection is erated by Percentage area south of the city. Should the city generated � the County with this project, it would be copra Council request thatch the County participate in the funding of this project. Wk-tr2 00176 Traffic Signal @ Moorpark Rd & Tierra Rejada Rd July 1995 Page 2 i r ■ The scope of work for the County's project to realign Road, includes the installation of a traffic si Moorpark signal will be installed at the intersection of the realigned Moorpark Road and Tierra Rejada Road. Said intersection may be at its present location or may be at Science Drive or Spring Road. Should the City Council wish to pursue the installation of the subject temporary traffic signal utilizing a traffic actuated controller, one way in which to lower costs would be to acquire, at this time, the traffic signal controller to be used for the future County traffic signal installation. That is, with the County's consent, the City would . • Proceed with the .. of the t ype to be of a traffic signal controller e specified for the future County traffic signal; • install and use said controller the present intersection until the County's project is completed; • be reimbursed for the cost of said controller by the County when project funding is approved; and, • allow the County to relocate to its ultimate location as a (if necessary) said controller j County's road realignment proeCt of the construction of the • Another option would be the purchase and use of a traffic - actuated controller which could be used by the City at another location. A third option would be the purchase and use of a traffic - actuated controller which could be sold to another agency when no longer needed by the City. F. Fisnal ImMAr� The following are estimated costs for the installation of a temporary traffic signal at the subject intersection utilizing three separate designs: Fully actuated .. ... $150,000 Partially actuated... . $ 60,000 Fixed ��� -time ................ $ 25,000. * Leas possible rei*wsewt of apprdxisately $30,000. Upk-tri 00177 Traffic Signal @ Moorpark Rd & Tierra Rejada Rd July 1995 Page 3 If the ultimate alignment of Moorpark Road calls for the relocation of the Road, road to intersect at Science Drive or Spring the subject temporary traffic signal will be The City Traffic Engineer has confirmed that, moved. if done the removal of this temporary traffic signal Properly, and the e sin of traffic controls at this intersection to a single STOP sign for the southbound leg of the intersection, will not create any significant problems. Mk _tr2 1• It is the recommendation of the City Traffic Engineer that a temporary traffic signal be installed at the subject intersection. 2. It is the City Traffic Engineer's preferred recommendation that the traffic signal be traffic - actuated. 3 • It may be passible to install a traffic - actuated controller at a reduced cost by recovering said cost from others. 4• If it is not possible to recover all or a significant portion of the cost of using a traffic - actuated controller, the total cost to the City for this project could exceed $60,000. It is the view of staff that this level of expenditure for this project is excessive and that the use of a traffic - actuated controller should only be approved if all or a significant portion of such costs can be reimbursed. 5. In the event that it appears that it is not recover such costs, it is recommended that the Ci tys ouncil approve installation traffic tr signal at roller. 00179 Traffic Signal @ Moorpark Rd & Tierra Rejada Rd July 1995 Page 4 YJASI Staff recommends that the City Council take the following actions: I. Direct staff to secure participation of the County of Ventura for one -third N) of the total cost of this project. 2. Direct staff to proceed with the following action upon receipt of approval of County funding: a) proceed with the installation of a tea at the intersection of Koor porary traffic signal Road, inti Park Road and Tierra Rejada ng a fixed -time controller. b) upgrade the design for this installation to use a traffic - actuated controller with detector loops, provided all or a majority of the costs for this upgrade can be reimbursed by one of the methods described in this report. 3. Approve an appropriation and budget amendment for this project in the amount of $70,000 (26- 142 -903) to be funded by a loan from the Gas Tax fund to the Tierra Rejada Road / Spring Road AOC (Note: Net cost Not to Exceed $35,000). uPk-tr2 00179, �x 1 JkJM31C3WnJ11k JWJECxXc01W1V C=TY C>P RPJkRK TO' Nonorable City Council P'tiEllt: Kenneth C. Gilbert, Director of Public works DATS: May 22, 1995 (Council M160ting 6-7-95) g CT. Disf scuss Signal FmWibility of constructing a recY R at the Intersection of Tierra Rejaaa oad and Road. .111 i The County of Ventura is proceeding with the nvironas ntal document and the design for a °Qarato of an and realign Moorpark Road south of the City. Project Thaproject o reconstruct the assessment of a number of alternative ali Twat includes which would leave the intersection at it alignments, including one Possible alignments would move the intersection o Science nce Drive or Spring Road. If the road alignment selected lmaves the intersection at its present location, the project would include the Construction of a traffic signal at this three way intersection. If the road alignment is moved to Science Drive, the traffic signal at this four -way intersection would If the include road alignment is Moved to Spring Road, the project would include the modification of the existing traffic signal accommodate the new four -way intersectiionat this intersection to JA �i- WIM A. Conce= It is anticipated that it will be at least two years before the above described County project is constructed. will delay the installation of ® This, of course, intersection. In the traffic signal at this increased n. delays for northbound meantime, increased vehicle speeds, of traffic accidents at this intersectionnhhave raised increased ceerns. Some sec the installation of a traffic signal concerns. address the problem, final as a means to uPk-tr 00 18U Gx 1 -z Traffic Signal @ Moorpark Rd & Tierra Rejada Rd June 1995 Page 2 The most recent traffic analysis indicates that intersection is operating at JA"el f Service (LOS) this obvious, therefore, that a traffic si n would not be we�rrant®d on the basis oftraffichcongest. °A,° I i ntersection is possible, however, that one or more of the other ion Signal Warrants might be met. These signal following; a) interruption of continuous flow; b pak include the delay; c) accident history; etc. ) Peak hour It is estimated that the construction of a signal at this location would cost Permanent traffic Again, the construction of a in excess of $150,000. included in the scope ermanent traffic signal is Reconstruction Project. of work for the County's Moorpark Road APk-tr Most temporary traffic signals are controlled by a fixed -time coontroller. This type of a controller schedule regardless of traffic volumes orates on a fixed time a given direction of traffic ex, For example, receive a RED light at a time when there no gcro sltraffic. City staff has obtained a bid for the construction of a temporary traffic signal at the subject intersection. The preliminary design which this bid was based on, calls for the installation of a fixed -time controller and the utilization of some surplus City -awned poles and mast arms. bid, which was received last A The assent of the bid price, is estimated that the total cost ofOthe project would be approximately $25,040, esuld be completed in approx It is estimated that the project It sixty (60) days. 00181 ex i Traffic Signal @ Moorpark Rd & Tierra Rejada Rd June 1995 Page 3 As stated above, it is not yet known if this any o€ the Traff.ia signal Ye,rrarnts. intersection meets safety and traffic operations i furthermore, the traffic pfixed -time" traffic signal a�acts of installing a temporary reasons, it is recommended al are also not yet known. For these performed before any decision is made with Engineering subject proposed project. 7 Due to the manner in which the City bogies were drawn, the entire intersection is within the City limits. ever, all o€ the traffic using the south leg of the interseefiion f is col of from or going to a location outside of the city. as stated above, it is the intent of In addition, Permanent traffic signal to serve this tra fic near to in the install future. For these reasons, should the City Council wish to Council request that the Cou proceed with thus project, it is recommended that the City the project. it fund one -third of the cost of If further consideration is to be g the subject Project, it is remanded that given to j proposed directed to g. the City Traffic Engineer be the im prepare an Engineering Study assessing the need for and pacts of constructing the subject project. NJ*-tr 00182 SENT BY:DWIGHT FRENCH & ASSOC,, 6- "'7 -95 ; 3'11PM :D%16HT FRENCH & ASOC -+ 805 529 8270.# 2/ 7 MEMORANDUM TO: Ken Gilbert, Public Works Director FROM: John Whitman, City Traffic Engin r SUBJECT: Signal Warrant Study - Moorpark Road and Tierra Rejada Road DATE: June 27, 1995 sa:a�: :sue : :�ss�a =ate :mss : :������pe■esa�s=a= „ —••�•, I have performed a traffic warrant study for the subject 3 way intersection based on the following: • traffic counts collected by Traffic Counts, Inc. on September 27, 1994; • accident analysis performed by Deputy McCracken on June 7, 1995; and • field review by myself on June 14, 1995. Warrants 1, 2, 5, 6, 7, S, 9, 10, and 11 are met. The warrant analysis sheets are attached to this memo. Traffic signals should not be based solely upon the warrants sinoe installation of a signal may have several negative impacts including Increasing certain types of accidents and increase off-peak vehicle delays. However, in this case the installation of a traffic signal Is clearly warranted. It is my understanding that Ventura County is in the process of designing a realignment of Moorpark Road south of Tierra Rejada Road and this htersection may be completely changed or moved to a now location. When the intersection is modified or moved a traffic signal will be needed. However, the signal components will probably be significantly different than components installed as a result of this warrant study. You provided me with a recent oost quotation for temporary traffic signal with a two phase fixed time controller. The quotation of approximately $113,000 appears to be a very reasonable price, even with the City providing part of the pole and mast arm hardware. Your request to me was to analyze and make recommendations; 1. regarding installation of an interim traffic signal, and 2. regarding the use of a fixed phase traffic signal at the location. 00183 JUN 27 '95 14:15 714 960 3476 PAGE.002 SENT BY :DWIGHT FRENCH & ASSOC,, 6 -Z7 -95 3 :12PM .D %1GHT FRENCH & ASOC- 805 529 8270:# 3/ 7 2 - Z My recommendations are as follows: 1. I recommend that the City install a temporary traffic signal at Moorpark Road and Tierra Rejada Road intersection. That reoommendation is based on my understanding that the County work Is at least 2 years in the future. Currently 9 signal warrants are met at the intersection, and accidents appear to be increasing at the intersection (3 accicWts in 1983, a accidents in 1994, and 3 accidents in the first quarter of 1994). 2. l recommend that the City install a partially traffic acdvated interim traffic signal at this location. A fixed time brim signal would not perform in an acceptable manner even with a flash mode. Peak hour volumes on Tierra Rejada are nearly 2000 vehicles/hour while off-peak volumes during dayWit are less than 800 vehicles/hour and off -peak volumes during night times are less than 200 vehicies/hour. Peak hour through cycles would need to be 30 seconds or more while off -peak daylight cycles would only need to be 10 to 15 seconds and off -peak night time cycles could be as short as 5 to 10 seconds. A fixed time signal could be set for flashing mode to accommodate night time traffic volumes, but would not accommodate daylight off -peak volumes. The off -peak delays even in daylight hours would be as much as 10 seconds which would encourage motorists to violate the signal phasing and could result in increased traffic accidents. VWV M— AW The costs of a traffic actuated signal (additional $25,000 for controller and $7,500 for detection devises) would be In the range of $50,000 to $75,000, depending on find design and the City's contribution of existing hardware. However, the controller hardware could be reused on the County project if properly designed and agreed to in advance. Assuming that the controller is reused on the County improvement project and the city furnishes the same amount of hardware on either installation the increased out of pocket cost of a traffic actuated signal is approximately $20,000 to $30,000 for the two year period. 00184 JUN 27 195 14:16 714 860 3476 PAGE.003 SENT BY :DWIGHT FRENCH & ASSOC. 6-x'7 -95 : 3 :12PM : DR I Cifr' FRENCH & ASOC 805 529 8270;# 4/ 7 Ex2. Traffic Manual TRAFFIC SIGNALS AND LIGHTING 9-15 14 "1 Figure 9-10 DIRECTIONAL TRAFFIC COUNT ZHEET q) INSERT NORTH POINT TOTAL" PEAK 4 0 1 x ;ND�j o .- 4 .� t AM PKM PM PEAK T07AL41 to 11 S J1,6�o�- - -� ! L 3 3 I / Z?V ? 9u 2 X -419") *ENTIRE COUNT PERIOD ti Not to 6"% AN > a 31 3 3 3Z 13iial (jFv 6 Xi417 )(/4^) A ,NK ,� �- o aa a o o 1A . x N p � i � ; ' rl n'1 I TOTAL* I PEAK I Lei DIRECTIONAL TRAFFIC COUNT DIST CO _ RTE _ PM NTERSECT GIVE N CITY Ti OA DATE HOUR _ - - T4 - _ HOUR - - T07AL VOLUME AM_ AM _7 .......... PEAK HOUR VOLUM PM - VOLUME 00185 JUN 27 '95 14:16 714 860 3476 PAGE.004 SENT BY:DWIGHT FRENCH & ASSOC.: 6 -27 -95 ; 3:12PM ;D%[GHT FRENCH & ASOC -, 805 529 82704 5/ 7 ek I -4- 9 -6 TRAFFIC 89MAL„8 AND LIGH'�MdG Trafllo, ti�fitl8l Figure s6i TRAFFIC SIGNAL WARRANTS Yes No _ CALC �"� DIST co DATE r� � TF PM OHK Major St; tr rob lte ^ ! DATE — Minor St: M •a r e a0 CHdcal Approach .peed i• • 4 --. mph Critical Appro h see Critical speed of major street traffic a 40 mph _ _ ._ _ . _ _ _ . _ 4 mph or In built up area of isolated oommunfty of < 10'000 pop. - .. _ _ _ ., .. _ ❑ J RURAL (R) traffic flow on the major street URBAN (U) WARRANT / - Minitnum Vehicular volume 1W% SATISFIED Y M NO © 6AINIMUM REOtNREMENTS 807 SAT1 IED YF ICJ NO (00% SHOWN IN BRACKETS) U R U R LANE s H 1 2 or more Dam Hlghsst APOr'dh- 400 16p tBo 40 Js-13 77e 770 tea Sao How j,40 Igo ') Z o asnort9rsst" (tom f� s4 200 16b 1441 f j S Its 140 J4 * NOTE: Heavier Nn turn movement from Major Street Included when LT- phasing is prvposedLj WARRANT 2 - Interruption of Continuous Trsflic * 1009G $ATt$FI@Q YES C1 NO Q MINIMUM WEWREWM 90% SATISFIED YES Z1 NO 1W%SHOWN IN BRACKET6). U R u a APPROACH 1 t sotl�� 750 lf26 �0 �� 75 93 4Q ' NOTE: Heavier left turn m 4-M-6) Hour 520 Dverrtant from Major Street Included when LT- phasing is proposed[] WARRANT 3 - Minimum Pedestrian volume 100% SATISFIED YES ONO REOUREMENT FULFILLED Pede;Man volume oroesing the major street is 1 oo or more for each of any four hours or is 140 or more during any One hour; and Yes No There are left than 80 gfps per hour In the major street traf- fic stream of Adequate length for pedestrians to cross; and Yes] No ❑ The nearest traffic signal along the major street is greater than 30o feet; and Yes ® � The new traffic signal will not seriously disrupt progressive traffic flow on the major street Yes ID No 0 The 8"Wlsotion M a warrant Is not r pY NreNibatlen e M 0'"M need for rlpht.of -arty not must be shown. Ds1�, oongss4lon, contusion or ether ewdsnos 00186 JUN 27 '95 14:17 714 860 3476 PAGF_IPS SENT BY:DWIGHT FRENCH & ASSOC.a 6 -'7 -95 ; 3:13PM :DR16HT FRENCH & ASOC, 805 529 8270:# 6/ 7 Traffic Manuel TRAFFIC SIGNALS AND LIGHTING 9-7 1 -1991 Figure 9.2 TRAFFIC SIGNAL WARRANTS WARRANTS 4 - School Crossings WARRANT S - Prlograasilre Mawment Not Applloable .................................. $ee School Crossings Warrant Sheet ❑ SATISFIED YES)l NO O HWY SYSTEM SERVING AS PRINCIPLE NETWORK FOR THROUGH TRAFPIC 1 \4 RURAL OR SUSURBAN HWY OUTSIDE M ENTERING. OR TRAVERSING A CITY �1 APPEARS AS MAJOR RWTE ON AN OFRCAL PLAN • ........^ 4 . ••.• YES 10 NO 0 The satis WWn of a warrant Is Ina' nacaaaa ft justlBeatlan for ■ Of the nand far M M �IsY. congeatlon, confuakrn or other evidence I�-�M.y aMeal9nment moat be shown. 00187 JUN 27 195" 14 :17 714 B60 3476 PAGE.006 > 1000 FT. N MI, g N t, k E t, W �1+� N YESS NO ❑ ON ONE YM y MOLNED STREETS OR STFiEETB WTIH ONE WW TRAFFIC SIG NIRCANCE AND ADJACENT 91(>INALS ARE SO FM APART TWIT NECESSARY pLAWNING AND SPEED CONTROL WOULD BE LOST ............................................................................................. ............................... ON EDMOy 8TREETp8 WHERE ADJACENT DO M)T PROVDE NEMSSW PLAIOOMNG AND C6*NALB SPEED CONTIi01. PROP08ED SIGNALS COULA CONSITUTE A PROORE=Vrj SIGNAL SYSTEM 11j p WARRANT 8 - A M*nt Experience SATISFIED YES NO 0 REQUIREMENTS WARRANT —. _ -- -- FULFILLED 1 " ;_ I ONE WARRANT _ WARRANT 1- MINIMUM VEHICULAR VOLUME SATIFIED..................................... ................... �" � T.............. OR 8094 WARRANT 2 - INTERRUPTKJN OF CONTINUOUS TRAFFIC YES)t NO d SIGNAL WILL NOT SERIOUSLY DISRUPT PROGRESSIVE TRAFFIC FLOW - .� ADEQUATE TRIAL OF LESS RESTRICTIVE REMEDIES HAS FAILED TO REDUCE ACCIDENT FREQUENCY ❑ ❑ ACC. WITHIN A 12 MONTH PERIOD SUSCEPTIBLE OF CORR. & INVOLVING INJURY OR S50Q gAMAGE .................... . •- ................. ..................... ................. I... .... .................. MINIMUM REOUIREMENT .••'••.••••••••.. NUMBER OF ACCIDENTS 5 OR MORE WARRANT 7 - Systems Warrant SATISFIED YES V1 NO G MINIM REOUIREMENTS ENTERING VOLUMES - ALL APPNOACHES f FULFILLED DUNG TYPICAL WEEKDAY PEAK HOUR It &4 7 4 > 800 VEH/HR ................... VEHIM .............,...............,. ............................... DLmL EACH OF ANY 5 HRS OF A 9AT. ANDAR SUN_ _,,,,,,_,,,� VEHIHR y �' NO O C ISTICS OF MAJOR RrX rr1~a — .,...._ . --- _ _ . HWY SYSTEM SERVING AS PRINCIPLE NETWORK FOR THROUGH TRAFPIC 1 \4 RURAL OR SUSURBAN HWY OUTSIDE M ENTERING. OR TRAVERSING A CITY �1 APPEARS AS MAJOR RWTE ON AN OFRCAL PLAN • ........^ 4 . ••.• YES 10 NO 0 The satis WWn of a warrant Is Ina' nacaaaa ft justlBeatlan for ■ Of the nand far M M �IsY. congeatlon, confuakrn or other evidence I�-�M.y aMeal9nment moat be shown. 00187 JUN 27 195" 14 :17 714 B60 3476 PAGE.006 SENT BY:DWIGHT FRENCH & ASSOC. 6 -27 -95 ; 3:14PM ;D%16HT FRENCH & ASOC- 805 529 8270 ;* 7/ 7 E•A Z r 6 9.8 TRAFFIC SIGNALS AND LIGHTING Tm flc ftnuml y -1101 Figure 9-3 TRAFFIC SIGNAL WARRANTS WARRANT 8 - Combination of Warrants SATISFIED YES & NO ❑ REdl11REMENT WARRANT J FULFILLED TWO WARRANTS SATISFIED $094 1. MINIMUM VEHICULAR VOLUME 1Ir YES NO [] 2. INTERRUPTION OF CONTINUOUS TRAFFIC WARRANT 9 -Four Hour Volume 2 or Both Approaches - Major Street �. Highest Approaches - Minor Street SATISFIED* YES "M NO ❑ Hour > Aso o > 340 * Refer to Figure 9-6 (URBAN AREAS) or Figure 9 -7 (RURAL AREAS) to determine d this warrant Is satisfied. WARRANT 10 • Peak Hour Delay SATISFIED YES ❑ NO ❑ (ALL PARTS MUST BE SATISFIED) 1. The total delay experienced for traffic on one minor street approach controlled by a STOP sign equals or exceeds four vehkrle -hours for a one -lane approach and five vehicle -hours for a two-lane approach; A Q YES NO [] 2. The volume on the same minor street approach equals or exceeds 100 vph for one moving lane of traffic or 1 SO vph for two moving lanes; M YES �'M NO ❑ 3. The total entering volume serviced during the hour equals or exceeds 800 vph for intersections with four or more approaches or 650 vph for intersections with three approaches. YES 'M NO ❑ WARRANT 11 - Peak Hour Volume SATISFIED* YES "IM NO ❑ rw i VI Approach Lanes One more Both Approaches - Major Street Highest Approaches Minor Street four 5Iou Refer to Figure 9•a (URBAN AREAS) or Figure 9 -9 (RURAL AREAS) to determine if this warrant is satisfied. The satisfaction of a Won nt Is not necessarily justification fora signal. Delay. congestion, confusion or other evidence of the need for right- 01-way assignment must be shown. PP4444) JUN 27 '95 14:18 714 860 3476 PAGE.007