Loading...
TC - 02-04-99AGENDA ROSEMEAD TRAFFIC COMMISSION 8838 E. Valley Blvd. Rosemead, CA 91770 Regular Meeting February 4, 1999 CALL TO ORDER Roll Call: Pledge of Allegiance: 7:00 p.m. Chairperson Knapp, Vice-Chair Quintanilla Commissioners Ruiz & Baffo Commissioner Knapp Invocation: Commissioner Quintanilla 1. APPROVAL OF MINUTES - January 7, 1999 IL ORAL COMMUNICATIONS FROM THE AUDIENCE - This is the time reserved for members of the audience to address the Commission on items not listed on the agenda (Maximum time per speaker is three (3) minutes; total time allocated is fifteen (15) minutes.) III. OLD BUSINESS - None IV. NEW BUSINESS A. REQUEST FOR STOP SIGNS ON HELLMAN AVENUE AT JACKSON AVENUE V. STAFF REPORTS A. CITYWIDE ENGINEERING AND TRAFFIC STUDY - UPDATE B. INTERVIEWS FOR TRAFFIC COMMISSIONER - UPDATE VI. COMMISSIONER REPORTS VII. ADJOURNMENT- Thursday, March 4,1999,7:00 p.m., Rosemead City Council Chambers, 8838 E. Valley Blvd., Rosemead, CA 91770 TO: HONORABLE CHAIRMAN AND MEMBERS ROSEMEAD TRAFFIC COMMISSION FROM: JOANNE ITAGAKI, TRAFFIC ENGINEERING DEPUTY DATE: JANUARY 26, 1999 RE: REQUEST FOR STOP SIGNS ON HELLMAN AVENUE AT JACKSON AVENUE REQUEST A letter has been received from Ms. Vonda Dessaint, 7565 E. Columbia Street, for a four-way STOP at Hellman Avenue and Jackson Avenue. Ms. Dessaint is concerned about the pedestrians crossing at this intersection. A copy of her letter is attached. CONDITIONS Hellman Avenue is a 40-foot wide east/west roadway with a double yellow centerline. There is one lane of traffic in each direction. Parking is allowed on both sides of the roadway. The fronting land uses along Hellman Avenue is residential. The posted speed limit on Hellman Avenue is 35 mph. Jackson Avenue is a 36-foot wide north/south roadway with no striping on the street. Jackson Avenue is STOP controlled at its intersection with Hellman Avenue. Parking is allowed on both sides of Jackson Avenue. The prima facie speed limit is 25 mph. A yellow school crosswalk exists on the west leg of the intersection of Hellman Avenue and Jackson Avenue. A crossing guard controls this crosswalk during school hours. There are advance pavement markings and signs alerting motorists of this crossing. Figure 1 depicts conditions at the intersection of Hellman Avenue and Jackson Avenue. (Figure 1 will be distributed during the Traffic Commission meeting.) Request for STOP signs on Hellman Avenue at Jackson Avenue Page 2 DATA The reported accident history of the intersection was reviewed for the period from January 1, 1997 through June 30, 1998. This accident history revealed two accidents reported at the intersection as follows: Description Date & Time 1. Northbound vehicle proceeding straight 02/06/98 @ 1:55pm broadsided a westbound vehicle proceeding straight (Right-of-way automobile). 2. Eastbound vehicle making an unsafe turn 04/12/97 @ 12:08pm broadsided a southbound vehicle proceeding straight (Improper turn). Pedestrian counts were estimated at the intersection based on field review. It is estimated that 20 pedestrians cross this intersection during the two peak school crossing hours. DISCUSSION Ms. Dessaint requested the installation of STOP signs on Hellman Avenue at Jackson Avenue. However, upon review of the traffic counts and traffic controls at the surrounding intersections, staff reviewed the intersection for the installation of a traffic signal. Traffic signals can enhance traffic safety and promote traffic flow when installed at locations where studies have shown such control to be justified. These studies examine traffic volumes, speed, accident history, alignment, user behavior, engineering judgement, and the location's compatibility with other signalized locations in the vicinity. These studies have been used to develop the Caltrans' Traffic Signal Warrants used to determine the need to install traffic signals at specific locations. Attached is the summary sheet and detailed traffic signal warrant analysis for the intersection of Hellman Avenue and Jackson Avenue. The summary sheet indicates that two warrants, Warrants 1 and 8, are satisfied. Warrant 1 indicates the vehicular volume of the intersection meets the Caltrans' guidelines. Warrant 8 is a combination warrant that considers if Warrant 1 and Warrant 2 (Interruption of Continuous Traffic) is 80% satisfied. Request for STOP signs on Hellman Avenue at Jackson Avenue Page 3 The satisfaction of 2 of the 11 warrants indicates a need for traffic signal control at the intersection. RECOMMENDATION The installation of a traffic signal at Hellman Avenue and Jackson Avenue is recommended to improve traffic flow and clarify vehicular right-of-way. With the installation,of a traffic signal at this intersection, the crossing guard is no longer required for the safe movement of school aged pedestrians. It is recommended the crossing guard be temporarily retained for 4 months after the installation of the traffic signal. During this period, the crossing guard will assist in educating the school-aged pedestrians on the pedestrian traffic signal indications ('Red Hand" & "Walking Person"). Staff will provide flyers to be distributed to the pedestrians and surrounding neighborhood. Attachments JI7 \Rsd\HellmanJackson Vonda Dessaint 1%5 E. Columbia St. Rosemead, GA qMo To the Traffic Commission 1"m requesting that there should be a four way stop on liellman and TacK- son. Even though there is a crossing guard there, she is only there between school hours. After that your on your own to safely cross the street. I've seen how fast the cars go down the street. There was a crossing light put up for In- gleside Hospital for the patients. Why cant there be something for the corner of TacYson and Hellman? It is too difficult for anybody to walK across the street, and even harder during traffic hours. Respectfully(' Vonda Dessaint D NOV j 8 1998 O, CITY OF ROSEMEAD SUMMARY OF TRAFFIC SIGNAL WARRANT ANALYSIS I (FROM CALTRANS TRAFFIC MANUAL) LOCATION: ~WIrnAV- RLtnu, /Ja ,Nn Aycr1 w DATE: -l ZS 99 WARRANT 1 - Minimum Vehicular Volume 100% Satisfied e No 80% Satisfied e No WARRANT 2 - Interruption of Continuous Traffic 100% Satisfied Yes 80% Satisfied No WARRANT 3 - Minimum Pedestrian Volume 100% Satisfied Yes )-o WARRANT 4 - School Crossings ~2sh' Yellow Scho nals School Area Traffic Signals Sa = Yes o` Satisfied Yes (9 WARRANT 5 - Progressive Movement Satisfied Yes No WARRANT 6 - Accident Experience Satisfied Yes No . WARRANT 7 - Systems Warrant Satisfied Yes No WARRANT 8 - Combination of Warrants Satisfied es No WARRANT 9 - Four Hour Volume Satisfied Yes No WARRANT 10 - Peak Hour Delay Satisfied Yes No WARRANT 11 - Peak Hour Volume Satisfied Yes No Traffic Manual TRAFFIC SIGNALS AND LIGHTING 9-7 7.1996 Figure 9-1 TRAFFIC SIGNAL WARRANTS CALC , Tt DATE DIST CO RTE KPM CHK DATE Major St: NP_I I wr"A 4)f_V1uf? Critical Approach Speed AZmp~n +ffr r Minor St: Jai k9o✓l A\jfivluP _ Critical Approach Speed km/h Critical speed of major street traff is > 64 km/h ~0 - - - - - - - RURAL (R) In built up area of isolated community of < 10,000 pop. - - - - - - - - - ❑ ❑ URBAN (U) WARRANT 1 - Minimum Vehicular Volume 100% SATISFIED YES NO ❑ 80% SATISFIED YES NO ❑ MINIMUM REQUIREMENTS (6o% SHOWN IN BRACKETS) U R U R APPROACH 1 2 or more LANES Both Apprchs. 500 350 600 420 or Street Major (400) (28 0) (480) (336) Highest Apptch 150 200 140 Minor Street (120) (84) (160) (112) I0Hour 3Z6 06 07 4l5 7ZZ 6c, 3 8l3 33 1\3 13-I IZ:1 143 IZZ IZ3 l31 l38 WARRANT 2 - Interruption of Continuous Traffic MINIMUM REQUIREMENTS (80% SHOWN IN BRACKETS) APPROACH I 1 2 or more ,\~QJ~~ 100% SATISFIED 80% SATISFIED YES ❑ NO )gS YES ~I NO ❑ Hour Both Apprchs. 750 525 900 630 Major Street (600) 420) (720) 504 326 bob 4-07 4-75 1-77-7 6c13 Sl3 a33 Highest Apprch. 75 53 100 70 11 3 j3~ 17.1 143 lZZ LZ3 131 138 Minor Street (60) ,(4211 (80) (56) _ WARRANT 3 - Minimum Pedestrian Volume 100% SATISFIED YES ❑ W fiO REQUIREMENT FULFILLED Pedestrian-volume crossing the major street is 100 or more for each of any four hours or is 190 or more during any one Yes ❑ No hour; NNQ E7+ c4e ZO peck III c(v • There are less than 60 gaps per hour in the major street traf- Yes ❑ No tic stream of adequate length for pedestrians to cross; g)_JjZ . ~ ,1~n~~ed The nearest traffic signal along the major street is greater ❑ No Yes than 90 ANQ The new traffic signal will not seriously disrupt progressive Yes f~ No ❑ traffic flow on the major street. The satisfaction of a warrant is not necessarily justification for a signal. Delay, congestion, confusion or other evidence of the need for right-of-way assignment must be shown. -8 TRAFFIC SIGNALS AND LIGHTING Traffic Manual 1996 Figure 9-2 TRAFFIC SIGNAL WARRANTS NARRANT 4 - School Areas Not Applicable ❑ See School Protection Warrants Sheet NARRANT 5 - Progressive Movement SATISFIED YES ❑ NO MINIMUM REQUIREMENTS DISTANCE TO NEAREST SIGNAL FULFILLED > 300 m (1000 44) N - m, S - m, E 30 W l3 pi. YES Z NO ❑ ON ONE WAY ISOLATED STREETS OR STREETS WITH ONE WAY TRAFFIC SIGNIFICANCE AND ADJACENT SIGNALS ARE SO FAR APART THAT NECESSARY PLATOONING 8 SPEED CONTROL WOULD BE LOST ON 2-WAY STREETS WHERE ADJACENT SIGNALS DO NOT PROVIDE NECESSARY PLATOONING AND SPEED CONTROL PROPOSED SIGNALS COULD CONSTITUTE A PROGRESSIVE SIGNAL SYSTEM ❑ VARRANT 6 - Accident Experience SATISFIED YES ❑ NO 1K REQUIREMENTS WARRANT FULFILLED ONE WARRANT WARRANT 1 - MINIMUM VEHICULAR VOLUME ✓ SATISFIED OR { YES ,2 NO ❑ WARRANT 2 - INTERRUPTION OF CONTINUOUS TRAFFIC } 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. 8 INVOLVING INJURY OR ? $500 DAMAGE MINIMUM REQUIREMENT NUMBER OF ACCIDENTS 5ORMORE Z gCC2~tt?-r`FS CoI/o(Iq-T - o6/30he ❑ !ARRANT 7 - Systems Warrant SATISFIED YES ❑ NO P - MINIMUM VOLUME REQUIREMENT I ENTERING VOLUMES - ALL APPROACHES I J FULFILLED L6-? pmt DURING TYPICAL WEEKDAY PEAK HOUR ID4- I VEH/HR 1000 VEWHR I DURING EACH OF ANY 5 HRS. OF A SAT. AND/OR SUN VEH/HR 1 YES NO E] CHARACTERISTICS OF MAJOR ROUTES MAJOR ST. I MINOR ST. HWY. SYSTEM SERVING AS PRINCIPLE NETWORK FOR THROUGH TRAFFIC ~O NO - RURAL OR SUBURBAN HWY OUTSIDE OF, ENTERING, OR TRAVERSING A CITY le'o NL) ~O APPEARS APPEARS AS MAJOR ROUTE ON AN OFFICIAL PLAN ANY MAJOR ROUTE CHARACTERISTICS MET. BOTH STREETS ❑ to satisfaction of a warrant Is not necessarily justification for a signal. Delay, congestion, confusion or other ,idence of the need for right-of-way assignment must be shown. 'Traffic Manual ' TRAFFIC SIGNALS AND LIGHTING 9-9 7.1996 Figure 9-3 TRAFFIC SIGNAL WARRANTS WARRANT 8 - Combination of Warrants SATISFIED YES ® NO ❑ REQUIREMENT WARRANT J FULFILLED TWO WARRANTS 1. MINIMUM VEHICULAR VOLUME SATISFIED 80% 2. INTERRUPTION OF CONTINUOUS TRAFFIC ✓ YES NO ❑ WARRANT 9 - Four Hour Volume Aooroach Lanes SATISFIED* YES ❑ NO EE _AA 2 or One more W 1~ - Zti IV Hour Both Approaches Major Street 4-Dl 4?5 33 Highest Approaches - Minor Street x t3 7 tZ7 11.3 38 * Refer to Figure 9-6 (URBAN AREAS) or Figure 9-7 (RURAL AREAS) to determine if 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 vehicle-hours for a one-lane approach and five vehicle-hours for a two-lane approach; AND E74 vv c 4tG~ YES ❑ NO 2. The volume on the same minor street approach equals or exceeds 100 vph for one moving lane of traffic or 150 vph for two moving lanes; AND YES ® 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 ❑ NO FD WARRANT 11 -Peak Hour Volume SATISFIED* YES ❑ NO ip Hour * Refer to Figure 9-8 (URBAN AREAS) or Figure 9-9 (RURAL AREAS) to determine if this warrant is satisfied. The satisfaction of a warrant is not necessarily justification for a signal. Delay, congestion, confusion or other evidence of the need for right-of-way assignment must be shown. Traffic Manual TRAFFIC SIGNALS AND LIGHTING 9-11 7.1996 Figure 9-5 SCHOOL PROTECTION WARRANTS _ CALC 3- =l~k' DATE I DIST CO RITE KPM CHK DATE Major St: 4e.1f~ RITE Critical Approach Speed 4 Z eM Minor St: Sn✓t AVEvIUp_ Critical Approach Speed km/h Critical speed of major street traffic > 64 km/h-(40- PT)f 9 or RURAL (R) In built up area of isolated community of < 10,000 pop. _ _ _ _ _ _ _ _ _ _ ❑ ❑ URBAN (U) YELLOW SCHOOL SIGNALS kRTS MUST BE SATISFIED) Minimum Requirements PART A U R Vehicle Volume Eaohot ours 2 h 200 40 School Age Pedestrians Each of 40 40 Crossing Street 1 1 2 hours AND PART B Critical Approach PART C AND 56 krn/h M6 -Ph) controlled crossing more than 180 m away? (r,004 SCHOOL AREA TRAFFIC SIGNALS (ALL PARTS MUST BE SATISFIED) Minimum Requirements PART A U R Vehicle Volume Each of 500 350 2 Fours School Age Pedestrians Each of 2 hours 100 70 ! 2 Crossing Street _ _ _ or _ _ 500 350 per day SATISFIED SATISFIED SATISFIED SATISFIED YES ❑/-Wb ❑ YES ❑ NO ❑ YES ❑ NO ❑ YES ❑ YES ❑ NO 0 SATISFIED AND 1=v~ PART B Is nearest controlled crossing more than 180 m away? (600 fir) YES ❑ NO P1 SATISFIED YES EJ NO ❑ k Traffic Manual TRAFFIC SIGNALS AND LIGHTING 9-13 7-1996 Figure 9-7 FOUR HOUR VOLUME WARRANT (Rural Areas) {-4,1Imav-\ Ajt-vi, ~~~cks0vi A\j tvk uI= 400 x o. = 300 ~ U w Q w0 ¢Q rja 200 Ow Z~ J 0 > x 100 L7 2 0 OR MORE LANES (MAJOR) 2 OR MORE LANES (MINOR) 2 OR MORE LANES (MAJOR) & 1 LANE (MINOR) OR 1 LANE (MAJOR) & 2 OR MORE LANES (MINOR) 200 300 400 500 600 700 800 900 1000 1 LANE (MAJOR) & 1 LANE (MINOR) MAJOR STREET - TOTAL OF BOTH APPROACHES - VPH rn j Sly/ e, (e , 606 44ST1 4~5 S33 ~~-l kz~ I43 13 ' NOTE: 60 VPH APPLIES AS THE LOWER THRESHOLD VOLUME FOR A MINOR STREET APPROACH WITH TWO OR MORE LANES AND 60 VPH APPLIES AS THE LOWER THRESHOLD VOLUME FOR A MINOR STREET APPROACHING WITH ONE LANE. I Traffic Manual k TRAFFIC SIGNALS AND LIGHTING 9-15 7.1996 Figure 9-9 PEAK HOUR VOLUME WARRANT (Rural Areas) }}f,~ llwzu,\ AJev~/JGcso~ A,,,-,-- 500 2 OR MORE LANES (MAJOR) & 2 OR MORE LANES (MINOR) a > 400 S 2 300 ~a. a N a ¢w z 2 200 J O > 0 100 2 OR MORE LANES. (MAJOR) & 1 LANE (MINOR) OR 1 LANE (MAJOR) & 2 OR MORE LANES (MINOR) 1 LANE (MAJOR) & 1 LANE 0 300 400 500 600 700 800 900 1000 1100 MAJOR STREET-TOTAL OF BOTH APPROACHES - VPH s ZS t43 1200 1300 * NOTE: 100 VPH APPLIES AS THE LOWER THRESHOLD VOLUME FOR A MINOR STREET APPROACH WITH TWO OR MORE LANES AND 75 VPH APPLIES AS THE LOWER THRESHOLD VOLUME FOR A MINOR STREET APPROACHING WITH ONE LANE.