Loading...
HomeMy WebLinkAbouttecp_051209TRAFFIC ENGINEERING COMMITTEE UKIAH CIVIC CENTER Conference Room No. 3 300 Seminary Avenue Ukiah, California 95482 TUESDAY, May 12, 2009 3:00 P.M. 1. CALL TO ORDER: Kageyama, Jordan, Baxter, Seanor, Turner, Taylor, Lampi, and Whitaker 2. APPROVAL OF MINUTES: April 14, 2009 3. AUDIENCE COMMENTS ON NON-AGENDA ITEMS: The Traffic Engineering Committee welcomes input from the audience. In order for everyone to be heard, please limit your comments to three (3) minutes per person and not more than 10 minutes per subject. The Brown Act regulations do not allow action to be taken on non-agenda items. 4. OLD BUSINESS: a. Discussion regarding Parking on Hamilton Drive and Hospital Drive (Verbal Report) 5. NEW BUSINESS: a. Discussion and Possible Action Regarding Request for STOP signs on Waugh Lane at the Doolan Creek bridge. b. Discussion and Possible Action Regarding Request for STOP signs on Orr Street at the Orr Creek bridge. 6. COMMITTEE MEMBER REPORTS: 7. MISCELLANEOUS ITEMS: 8. ADJOURNMENT: Please be advised that the City needs to be notified 72 hours in advance of a meeting if any specific accommodations or interpreter services are needed in order for you to attend. The City complies with ADA requirements and will attempt to reasonably accommodate individuals with disabilities upon request. I hereby certify under penalty of perjury under the laws of the State of California that the foregoing agenda was posted on the bulletin board at the main entrance of the City of Ukiah City Hall, located at 300 Seminary Avenue, Ukiah, California, not less than 72 hours prior to the meeting set forth on this agenda. Dated this 8th day of May, 2009. Amanda Davis, Administrative Secretary TRAFFIC ENGINEERING ITT MINUTES UKIAH CIVIC CENTER Conference Room No. 3 300 Seminary Avenue Ukiah, California 95482 TUESDAY, April 14, 2009 3:00 P.M. Members Present Steve Turner, Chair Dan Baxter, MTA, Vice-Chair Rick Seanor, Staff John Lampi, Public Representative Ben Kageyama, Staff Jerry Whitaker, Staff Kim Jordan, Staff Members Absent Trent Taylor, UPD Others Present Connie Diamond, `Wagenseller Neighborhood Association Sta*` Present Amanda,Davis, Recording Secretary 'I. CALL TO ORDER: 3:03:20 PM Kageyama, Jordan, Baxter, Seanor, Turner, Lampi, and Whitaker 2. APPROVAL OF MINUTES, 03:3 8 PM'' M/S Baxter/Whitaker,it was carToed by an all AYE voice vote of the members present to approve the March.90 2009, minutes as s6bmitted. Abstain: Member Turner. 3. AUDIENCE COMMENTS ONN 'qQN-6 WDA ITEMS: The Traffic Engineedrg C,cm'mittee welcomes input from the audience. In order for everyone to be heard, pleaso'limi.t'your corrmn1ents to three (3) minutes per person and not more than 10 minutes per subject, 'The Brown Act regulations do not allow action to be taken on non-agenda items. 4. OLD BUSINESS: 3: 0, a:' D;scussion garding request for crosswalks on Clara Avenue Member Kageyama presented the item. The City has a contract with Coastland Civil Engirieering,afid their task is to prepare a Neighborhood Enhancement Plan for Clara Avenue, Betty Street and Lorraine Street. This plan includes reconstruction of the pavement; 'pedestrian facilities, sidewalk, curb and gutter, traffic calming measures, and st6rm drainage. Staff is currently reviewing the conceptual plans and in the next couple of months plan to hold a public workshop where they can present this information. Staff's goal is to receive input from the public before finalizing the plans. Staff recommends that we do not take any action at this time on creating new crosswalks on Clara Avenue, Betty Street and Lorraine Street because the Neighborhood Enhancement Plan is being worked on and public will be able to make suggestions at the public workshop. Public speaking to the item: Connie Diamond with Wagenseller Neighborhood TEC 4/14/08 Page 1 of 2 Association inquired on when the public workshop will take place. Member Kageyama reported that it will take place in the next couple of months. 5. NEW BUSINESS: 3:11:30 PM a. Discussion and Possible Action Regarding Parking on Hamilton Drive and Hospital Drive Member Seanor presented the item. Recommended Action: 1) Recommend approval of a no parking zone (10pm to 6am) for Hamilton Drive and for Hospital Drive east of Hamilton Drive and refer to City Council for formal action. 2) Refer to staff for further analysis. 3) Take no action. Public speaking to the item: Connie Diamond with Wagenseller Neighborhood Association spoke to the item. Consensus of the members present is to refer to staff for further analysis and receive information on possible alternatives to this area from the Police Department and bring it back to the next committee meeting for further discussion.,; b. Discussion and Possible Action Regarding Requbst for STOP signs on East Gobbi Street at Oak Manor Drive 3 : 2,r ~M Member Seanor presented the item. Recommended Action: 1) Deny the request for a STOP signs on East Gobbi Street at Oak Manor Drive. 2) Refer to staff for further analysis. Public speaking to the item: George Vials mm owns the house located at 595 Oak Manor Drive and is requesting that two strip signs be installed on East Gobbi Street at Oak Manor Drive. The neighborhood is`Concerned with the high rates of speed and the danger it presents. `M6, Kathryn Anth ony (rents the house at 595 Oak Manor Drive) spoke to the item and expressed her concern. Ms. Anthony reported that a car had run into her house. M/S Kageyamr a/Whitaker; it eras carried by an all AYE voice vote of the members preset`t to deny the request for a STOP sign on East Gobbi Street at Oak Manor Drive. Staff denied the request because it does not meet the stop sign warrants of the Manual on Uniform Traffic Control Devices (MUTCD) and the California supplement to the MUTCD. 6. COMMITTEE MEMBE 'REPORTS: 7. MISCELLANEOUS ITEMS: Member Seanor reported that staff is moving forward on the Downtown Streetscape Improvement Plan. Staff received the conceptual plan from the consultant. A public workshop will be held on May 12th, 2009 from 6:00pm-8:00pm. Committee members will receive further information regarding this workshop. 8. ADJOURNMENT: 4:48:24 PM There being no further business, the meeting was adjourned at 4:48 p.m. Amanda Davis, Recording Secretary TEC 4/14/08 Page 2 of 2 CITY OF UKIAH n ~HMORANDUM DATE: May 12, 2009 TO: Traffic Engineering Committee PRO : Rick Seanor, Deputy Director of Public Works gjk- SUBJECT: Discussion and Possible Action Regarding Request for STOP signs on Waugh Lane at the Doolan Creek bridge Agenda Item 5a. REQUEST: Jerry Whitaker, Public Works Supervisor has requested STOP signs on Waugh Lane at the Doolan Creek bridge. In addition, a "PROCEED WHEN CLEAR" sign would be posted with each STOP sign, similar to the signage on Beacon Lane. The STOP signs are requested to reduce vehicle speed and to allow only one vehicle on the bridge at a time. DISCSSIO : The City has long term plans to widen the south end of Waugh Lane. In 2001, the City submitted an application for STIP funding to MCOG for the widening of Waugh Lane and the replacement of the Waugh Lane Bridge. The cost estimate for the project, in 2001, was $633,000. Unfortunately, the STIP project was not selected for funding. Waugh Lane has a posted speed zone of 25 mph. STOP SIGNS: Attached for reference are selected pages from the Manual on Uniform Traffic Control Devices (MUTCD) and the MUTCD 2003 California Supplement regarding STOP sign applications (Attachment "A"). Also, please note Attachment "B", Section 7061 of the City Code which authorizes the city traffic engineer (TEC) to post STOP signs. RECOMMENDATION: Staff is submitting this report for review, discussion, and possible action by the TEC. cc: file Page 2B-6 rrn -J-rq #i c. c~ 2003 Edition Table 2B-1. Regulatory Sign Sizes (Sheet 5 of 5) ~ Sign MUTCD ectlon Conventional Expressway Freeway Minimum Oversized Code Road Keep Off Median R11-1 213.47 600 x 750 - - - 24 x 30 Road Closed R11-2 2B.48 1200 x 750 48 x 30 Road Closed - Local 1:111-3.3a, 213.48 1500 x 750 - - Traffic Only 3b.4 (60 X 30, - Weight Limit . R12-1,2 1 11 26.49 600 x 750 900 x 1200 - - 900x 1200 24 x 30 36 x 48 36 x• 48 Weight Limit R12-3 213.49 600 x 900 - - 24 x 36 - Weight Limit R12-4 1 213.49 900 x 600 36x24 - Weight Limit R12-5 213.49 600 x 900 900 x 1200 1200 x 1500 24x36 36x48 48x60 Metric Plaque R12-6 1 213.49 600 x 225 _ 24x9 Weigh Station R13 -1 213.50 1800 x 1200 2400 x 1650 3000 x 1100 72x48 9x66 120x84 V Truck Route R14-1 213.51 600 x 450 24x18 Hazardous Material R14-2,3 28.52 600 x 600 750 x 70 900 x 900 24x24 0x3 36x36 (42 National Network R14-4,5 213.53 600 x 600 750 x 750 900 x 900 - 1050 x 1050 24x24 30x30 36x36 42x42 Railroad Crossbuck R15-1 1 813.03 1200 x 225 48x9 - Look, R15-8 . 88.16 900 x 450 (36 x 18) - Notes: t 1. Larger signs may be used when appropriate. 2. Dimensions are shown in millimeters followed by inches in parentheses and are, shown as width x height. Section 2B.05 STOP Sign ApPlications Guidance: STOP signs should be used if engineering judgment indicates that one or more of the following conditions exist: A. Intersection of a less important road with a main road where application of the normal right-of-way rule would not be expected to provide reasonable compliance with the law; B. Street entering a through highway or street; C. Unsignalized intersection in a signalized area; and/or D. High speeds, restricted view, or crash records indicate a need for control by the STOP sign. Standard: Because the potential for conflicting commands could.create driver confusion, STOP signs shall not be installed at intersections where traffic control signals are installed and operating except as noted in Section 4ID.01. Portable or part-time STOP signs shall not be used except for emergency and temporary traffic control zone purposes. Guidance: STOP signs should not be used for speed control. STOP signs should be installed in a manner that minimizes the numbers of vehicles having to stop. At intersections where a full stop is not necessary at all times, consideration should be given to using less restrictive measures such as YIELD signs (see Section 213.08). Sect. 2B.05 November 2003 a r q 2003 Edition M 4cy11tA ' n 6 6-'ti. J-r' 6 G t=ov&rf Page 2B-7 Once the decision has been made to install two-way stop control, the decision regarding the appropriate street to stop should be based on engineering judgment. In most cases, the street carrying the lowest volume of traffic should be stopped. A STOP sign should not be installed on the major street unless justified by a traffic engineering study. Support: The following are considerations that might influence the decision regarding the appropriate street upon which to install a STOP sign where two streets with relatively equal volumes and/or characteristics intersect: A. Stopping the direction that conflicts the most with established pedestrian crossing activity or school walking routes; B. Stopping the direction that has obscured vision, dips, or bumps that already require drivers to use lower operating speeds; C. Stopping the direction that has the longest distance of uninterrupted flow approaching the intersection; and D. Stopping the direction that has the best sight distance to conflicting traffic. The use of the STOP sign at highway-railroad grade crossings is described in Section 813.08. The use of the STOP sign at highway-light rail transit grade crossings is described in Section 10C.04. Section 2P.06 STOP Sign Placement. Standard: The STOP sign shall be installed on the right side of the approach to which it applies. When the STOP sign is installed at this required location and the sign visibility is restricted, a Stop Ahead sign (see Section 2C.29) shall be installed in advance of the STOP sign. The STOP sign shall be located as close as practical to the intersection it regulates, while optimizing its visibility to the road user it is intended to regulate. STOP signs and YIELD signs shall not be mounted on the same post. Guidance: Other than a DO NOT ENTER sign, no sign should be mounted back-to-back with a STOP sign in a manner that obscures the shape of the .STOP sign. Support: Section JA. 16 contains additional information about separate and combined mounting of other signs with STOP signs. . Guidance: Stop lines, when used to supplement a STOP sign, should be located at the point where the road user should stop (see Section 313.16). If only one STOP sign is installed on an approach, the STOP sign should not be placed on the far side of the intersection. Where two roads intersect at an acute angle, the STOP sign should be positioned at an angle, or shielded, so that the legend is out of view of traffic to which it does not apply. Where there is a marked crosswalk at the intersection, the STOP sign should be installed in advance of the crosswalk line nearest to the approaching traffic. Option: At wide-throat intersections or where two or more approach lanes of traffic exist on the signed approach, observance of the stop control may be improved by the installation of an additional STOP sign on the left side of the road and/or the use of a stop line. At channelized intersections, the additional STOP sign may be effectively placed on a channelizing, island. Support: Figure 2A-2 shows examples of some typical placements of STOP signs. Section 213.07 Multiway Stop Applications Support: Multiway stop control can be useful as a safety measure at intersections if certain traffic conditions exist. Safety concerns associated with multiway stops include pedestrians, bicyclists, and all road users expecting other road users to stop. Multiway stop control is used where the volume of traffic on the intersecting roads is approximately equal. The restrictions on the use of STOP signs described in Section 213.05 also apply to multiway stop applications. November 2003 Sect. 2B.05 to 213:07 Page 2B-8 Guidance: 2003 Edition The decision to install multiway stop control should be based on an engineering study. The following criteria should be considered in the engineering study for a multiway STOP sign installation: A. Where traffic control signals are justified, the multiway stop is an interim measure that can be installed quickly to control traffic while arrangements are being made for the installation of the traffic control signal. B. A crash problem, as indicated b~ 5 or more reported crashes in a 12-month-period that are susceptible to correction by a multiway stop installation. Such crashes include right- and left-turn collisions as well as right-angle collisions. C. Minimum volumes: 1. The vehicular volume entering the intersection from the major street approaches (total of both approaches) averages at least 300 vehicles per hour for any 8 hours of an average day, and 2. The combined vehicular, pedestrian, and bicycle volume entering the intersection from the minor street approaches (total of both approaches) averages at least 200 units per hour for the same 8 hours, with an average delay to minor-street vehicular traffic of at least 30 seconds per vehicle during the highest hour, but 3. If the 85th-percentile approach speed of the major-street traffic exceeds 65 km/h or exceeds 40 mph, the minimum vehicular volume warrants are 70 percent of the above values. D. Where no single criterion is satisfied, but where Criteria B, C.1, and C.2 are all satisfied to 80 percent of the minimum values. Criterion C.3 is excluded from this condition. Option: Other criteria that may be considered in an engineering study include: A. The need to control left-turn conflicts; B. The need to control vehicle/pedestrian conflicts near locations that generate high pedestrian volumes; C. Locations where a road user, after stopping, cannot see conflicting traffic and is not able to reasonably safely negotiate the intersection unless conflicting cross traffic is also required to stop; and D. An intersection of two residential neighborhood collector (through) streets of similar design and operating characteristics where multiway stop control would improve traffic operational characteristics of the intersection. Section 28.08 YIELD Sign.°tRl-2) Standard: The YIELD (RI-2) sign (see Figure 211-1) shall be a downward-pointing equilateral triangle with a wide red border and the legend YIELD in red on a white background. Support: The YIELD sign assigns right-of-way to traffic on certain approaches to an intersection. Vehicles controlled by a YIELD sign need to slow down or stop when necessary to avoid interfering with conflicting traffic. Section 28.09 YIELD Sign Applications Option: YIELD signs may be used instead of STOP signs if engineering judgment indicates that one or more of the following conditions exist: A. When the ability to see all potentially conflicting traffic is sufficient to allow a road user traveling at the posted speed, the 85th-percentile speed, or the statutory speed to pass through the intersection or to stop in a reasonably safe manner. B. If controlling a merge-type movement on the entering roadway where acceleration geometry and/or sight distance is not adequate for merging traffic operation. C. The second crossroad of a divided highway, where the median width at the intersection is 9 m (30 ft) or greater. Iu this case, a STOP sign may be installed at the entrance to the first roadway of a divided highway, and a YIELD sign may be installed at the entrance to the second roadway. D. An intersection where a special problem exists and where engineering judgment indicates the problem to be susceptible to correction by the use of the YIELD sign. Standard: A YIELD (RI-2) sign shall be used to assign right-of-way at the entrance to a roundabout intersection. Sect. 2B.07 to 2B.08 November 2003 MUTCD 2003 California Supplement Page 2B-T CHAPTER 2B. REGULATORY SIGNS Section 2B.01 Application of Regulatory Signs The following is added to this section: Standard: Orders, ordinances and resolutions by local authorities which affect State highways shall be approved by Department of Transportation. Support: Signs required for enforcement are normally placed by, and at the expense of, the authority establishing the regulation. Section 2B.02 Design of Regulatory Signs The following is added to this section: Support: Sign design details are contained in FHWA's "Standard Highway Signs" book and Department of Transportation's "Traffic Sign Specifications". See Section lA.l l for information regarding these publications. Table 2B-101 shows a list of California Regulatory Signs. Figure 2B-101 shows California Regulatory Signs. Section 2B.05 STOP Sign Applications v The following is added to this section: Support: A STOP (R1-1) sign is not a "cure-all" and is not a substitute for other traffic control devices. Often, the J~ need for a STOP (Rl-1) sign can be eliminated if the sight distance is increased by removing obstructions. Through Highways Option: STOP (R1 -1) signs may be installed either at or near the entrance to a State highway, except at signalized intersections, or at any location so as to control traffic within an intersection. Refer to CVC 21352 and 21355. See Section IA. 11 for information regarding this publication. Support: When STOP (Rl-1) signs or traffic control signals have been erected at all entrances, a highway constitutes a through highway. Refer to CVC 600. Authority to place STOP (Rl-1) signs facing State highway traffic is delegated to the Department of Transportation's District Directors. Option: Local authorities may designate any highway under their jurisdiction as a through highway and install STOP (RI-1) signs in a like manner. Refer to CVC 21354. Standard: No local authority shall erect or maintain any STOP (RI-1) sign or other traffic control device requiring a stop, on any State highway, except by permission of the Department of Transportation. Refer to CVC 21353. i Support: The Department of Transportation will grant such permission only when an investigation indicates that the STOP sign will benefit traffic. r May 20, 2004 7060° AUTHORITY TO INSTALL OFFICIAL TRAFFIC-CONTROL DEVICES: The city traffic engineer shall have the power and duty to determine the location of and to place and maintain or cause to be placed and maintained official traffic-control devices52(1) when and as required to make effective the provisions of this chapter or when he may deem such official traffic-control devices necessary or proper to regulate traffic or to guide or warn traffic. (Ord. 553, §1, adopted 1963) 7061: AUTHORITY TOE CT CERTAIN OFFICIAL TRAFFIC-CONTROL DEVICES ENUMERATED: The authority herein granted to the city traffic engineer to locate, place and maintain official traffic-control devices includes, but is not necessarily confined to, the authority to locate, place and maintain warning signs to caution drivers of the need for added alertness or reduction in speed, regulatory signs, including speed signs, stop signs, yield signs, traffic signals and alternating signals, to inform motorists of regulations governing movement, guide signs for guidance and directional information and construction signs, which may include warning, regulatory and guide signs. (Ord. 553, §4, adopted 1963) CITY OF UKIAH ~Vj - L lr S V ATE: May 12, 2009 TO: Traffic Engineering Committee FRO : Rick Seanor, Deputy Director of Public Works SUBJECT: Discussion and Possible Action Regarding Request for STOP signs on Orr Street at the Orr Creek bridge Agenda Item 5b. REQUEST: Jerry Whitaker, Public Works Supervisor has requested STOP signs on Orr Street at the Orr Creek bridge. In addition, a "PROCEED WHEN CLEAR" sign would be posted with each STOP sign, similar to the signage on Beacon Lane. The STOP signs are requested to reduce vehicle speed and to allow only one vehicle on the bridge at a time. DISCUSSION: The City of Ukiah is currently working with a design consultant for a replacement bridge deck. As an option to reopen the bridge, the City is considering placement of large steel plates on the bridge deck. It is anticipated that the STOP signs would only be required during the interim period prior to installation of the permanent bridge decking. STOP SIGNS: Attached for reference are selected pages from the Manual on Uniform Traffic Control Devices (MUTCD) and the MUTCD 2003 California Supplement regarding STOP sign applications (Attachment "A"). Also, please note Attachment "B", Section 7061 of the City Code which authorizes the city traffic engineer (TEC) to post STOP signs. RECOMMENDATION: Staff is submitting this report for review, discussion, and possible action by the TEC. cc: file Page 213-6 2001 Edition _rA d t Otvt t LLY (~t~ , l`1'1'f I(-~$ 1) 1 G ~~E'il "P7 ~il i G`%' A%r Table 2B-1. RegulatOr y Sign Sizes (Sheet 5 of 5) Sign MUTCD Section Conventional Expressway Freeway Minimum Oversized Code Road Keep Off Median R11-1 213.47 600 x 750 - - - - 24x30 Road Closed R11-2 213.48 1200 x 750 - - - - 48 x 30 11 Road Closed - Local R11-3,3a, 213.48 1500 x 750 - - - - Traffic Only 3b,4 60 x 30 Weight Limit . R12-1,2 213.49 600 x 750 900 x 1200 - - 900 x 1200 24 x 30 36 x 48 36 x 48 Weight Limit R12-3 213.49 600 x 900 - - - - 24 x 36 Weight Limit R12-4 26.49 900 x 600 - - - 36x24 Weight Limit R12-5 213.49 600 x 900 900 x 1200 1200 x 1500 - - 24x36 3fix48 48x60 Metric Plaque R12-6 28.49 600 x 225 24x9 Weigh Station R13-1 213.50 1800 x 1200 2400 x 1650 3000 x 1100 - - 72x48 96x66 120x84 Truck Route R14-1 28.51 600 x 450 - - - 24x18 Hazardous Material R14-2,3 213.52 600 x 600 750 x 750 900 x 900 - 1050 x 1050 24x24 30x30 36x36 42x42 National Network R14-4,5 28.53 600 x 600 750 x 750 900 x 900 - 1050 x 1050 24 x 24 30 x 30 36 x 36 42 x 42 Railroad Crossbuck R15-1 813.03 1200 x 225 - - - - ' 48x9 Look R15-8 88.16 900 x 450 - - - (36 x 18) Notes t 1. Larger signs may be used when appropriate. 2. Dimensions are shown in millimeters followed by inches in parentheses and are shown as width x height. Section 2B.05 STOP Sign Applications Guidance: STOP signs should be used if engineering judgment indicates that one or more of the following conditions exist: A. Intersection of a less important road with a main road where application of the normal right-of-way rule would not be expected to provide reasonable compliance with the law; B. Street entering a through highway or street; C. Unsignalized intersection in a signalized area; and/or D: High speeds, restricted view, or crash records indicate a need for control by the STOP sign. Standard: Because the potential for conflicting commands could-create driver confusion, STOP signs shall not be installed at intersections where traffic control signals are installed and operating except as noted in Section 4D.01. Portable or part-time STOP signs shall not be used except for emergency and temporary traffic control zone purposes. Guidance: STOP signs should not be used for speed control. STOP signs should be installed in a manner that minimizes the numbers of vehicles having to stop. At intersections where a full stop is not necessary at all times, consideration should be given to using less restrictive measures such as YIELD signs (see Section 213.08). Sect. 2B.05 November 2003 2003 Edition om me 1 p Vn Arw. 1_rK IC- CVYL+t" ~ Page 2B-7 Once the decision has been made to install two-way stop control, the decision regarding the appropriate street to stop should be based on engineering judgment. In most cases, the street carrying the lowest volume of traffic should be stopped. A STOP sign should not be installed on the major street unless justified by a traffic engineering study. Support: The following are considerations that might influence the decision regarding the appropriate street upon which to install a STOP sign where two streets with relatively equal volumes and/or characteristics intersect: A. Stopping the direction that conflicts the most with established pedestrian crossing activity or school walking routes; B. Stopping the direction that has obscured vision, dips, or bumps that already require drivers to use lower operating speeds; C. Stopping the direction that has the longest distance of uninterrupted flow approaching the intersection; and D. Stopping the direction that has the best sight distance to conflicting traffic. The use of the STOP sign at highway-railroad grade crossings is described in Section 813.08. The use of the STOP sign at highway-light rail transit grade crossings is described in Section 10C.04. Section 2B.06 STOP Sign Placement Standard: The STOP sign shall be installed on the right side of the approach to which it applies. When the STOP Sign is installed at this required location and the sign visibility is restricted, a Stop Ahead sign (see Section 2C.29) shall be installed in advance of the STOP sign. The STOP sign shall be located as close as practical to the intersection it regulates, while optimizing its visibility to the road user it is intended to regulate. STOP signs and YIELD signs shall not be mounted on the same post. Guidance: Other than a DO NOT ENTER sign, no sign should be mounted back-to-back with a STOP sign in a manner that obscures the shape of the STOP sign. Support: Section JA. 16 contains additional information about separate and combined mounting of other signs with STOP signs. Guidance: Stop lines, when used to supplement a STOP sign, should be located at the point where the road user should stop (see Section 3B.16). If only one STOP sign is installed on an approach, the STOP sign should not be placed on the far side of the intersection. 'Where two roads intersect at an acute angle, the STOP sign should be positioned at an angle, or shielded, so that the legend is out of view of traffic to which it does not apply. Where there is a marked crosswalk at the intersection, the STOP sign should be installed in advance of the crosswalk line nearest to the approaching traffic. Option: At wide-throat intersections or where two or more approach lanes of traffic exist on the signed approach, observance of the stop control may be improved by the installation of an additional STOP sign on the left side of the road and/or the use of a stop line. At channelized intersections, the additional STOP sign may be effectively placed on a channelizing, island. Support: Figure 2A-2 shows examples of some typical placements of STOP signs. Section 2B.07 Multiway Stop Applications Support: Multiway stop control can be useful as a safety measure at intersections if certain traffic conditions exist. Safety concerns associated with multiway stops include pedestrians, bicyclists, and all road users expecting other road users to stop. Multiway stop control is used where the volume of traffic on the intersecting roads is approximately equal. The restrictions on the use of STOP signs described in Section 28.05 also apply to multiway stop applications. November 2003 Sect. 213.05 to 213:07 Page 2B-8 Guidance: 2003 Edition The decision to install multiway stop control should be based on an engineering study. The following criteria should be considered in the engineering study for a multiway STOP sign installation: A. Where traffic control signals are justified, the multiway stop is an interim measure that can be installed quickly to control traffic while arrangements are being made for the installation of the traffic control signal. B. A crash problem, as indicated b~ 5 or more reported crashes in a 12-month period that are susceptible to correction by a multiway stop installation. Such crashes include right- and left-turn collisions as well as right-angle collisions. C. Minimum volumes: 1. The vehicular volume entering the intersection from the major street approaches (total of both approaches) averages at least 300 vehicles per hour for any 8 hours of an average day, and 2. The combined vehicular, pedestrian, and bicycle volume entering the intersection from the minor street approaches (total of both approaches) averages at least 200 units per hour for the same 8 hours, with an average delay to minor-street vehicular traffic of at least 30 seconds per vehicle during the highest hour, but 3. If the 85th-percentile approach speed of the major-street traffic exceeds 65 . km/h or exceeds 40 mph, the minimum vehicular volume warrants are 70 percent of the above values. D. Where no single criterion is satisfied, but where Criteria B, C.1, and C.2 are all satisfied to 80 percent of the minimum values. Criterion C.3 is excluded from this condition. Option: Other criteria that may be considered in an engineering study include: A. The need to control left-turn conflicts; B. The need to control vehicle/pedestrian conflicts near locations that generate high pedestrian volumes; C. Locations where a road user, after stopping, cannot see conflicting traffic and is not able to reasonably safely negotiate the intersection unless conflicting cross traffic is also required to stop; and D. An intersection of two residential neighborhood collector (through) streets of similar design and operating characteristics where multiway stop control would improve traffic operational characteristics of the intersection. Section 2B.08 YIELD Sign-(RI-2) Standard: The YIELD (RI-2) sign (see Figure 213-1) shall be a downward-pointing equilateral triangle with a wide red border and the legend YIELD in red on a white background. Support: The YIELD sign assigns right-of-way to traffic on certain approaches to an intersection. Vehicles controlled by a YIELD sign need to slow down or stop when necessary to avoid interfering with conflicting traffic. Section 2.09 YIELD Sign Applications Option: YIELD signs may be used instead of STOP signs if engineering judgment indicates that one or more of the following conditions exist: A. When the ability to see all potentially conflicting traffic is sufficient to allow a road user traveling at the posted speed, the 85th-percentile speed, or the statutory speed to pass through the intersection or to stop in a reasonably safe manner. B. If controlling a merge-type movement on the entering roadway where acceleration geometry and/or sight distance is not adequate for merging traffic operation. C. The second crossroad of a divided highway, where the median width at the intersection is 9 m (30 ft) or greater. In this case, a STOP sign may be installed at the entrance to the first roadway of a divided highway, and a YIELD sign may be installed at the entrance to the second roadway. D. An intersection where a special problem exists and where engineering judgment indicates the problem to be susceptible to correction by the use of the YIELD sign. Standard: A YIELD (RI-2) sign shall be used to assign right-of-way at the entrance to a roundabout intersection. Sect. 2B.07 to 2B.08 November 2003 MUTCD 2003 California Supplement Page 2B-1 CHAPTER 2B. REGULATORY SIGNS Section 2B.01 Application of Regulatory Signs The following is added to this section: Standard: Orders, ordinances and resolutions by local authorities which affect State highways shall be approved by Department of Transportation. Support: Signs required for enforcement are normally placed by, and at the expense of, the authority establishing the regulation. Section 2B.02 Design of Regulatory Signs The following is added to this section: Support: Sign design details are contained in FHWA's "Standard Highway Signs" book and Department of Transportation's "Traffic Sign Specifications". See Section IA. 11 for information regarding these publications. Table 2B-101 shows a list of California Regulatory Signs. Figure 2B-101 shows California Regulatory Signs. Section 2B.05 STOP Sign Applications The following is added to this section: Support: A STOP (R1-1) sign is not a "cure-all" and is not a substitute for other traffic control devices. Often, the need for a STOP (RI-1) sign can be eliminated if the sight distance is increased by removing obstructions. Through Highways i Option: ` STOP (Rl-1) signs may be installed either at or near the entrance to a State highway, except at signalized intersections, or at any location so as to control traffic within an intersection. Refer to CVC 21352 and 21355. See Section 1A.11 for information regarding this publication. Support: When STOP (R1-1) signs or traffic control signals have been erected at all entrances, a highway constitutes a through highway. Refer to CVC 600. Authority to place STOP (RI-1) signs facing State highway traffic is delegated to the Department of Transportation's District Directors. Option: Local authorities may designate any highway under their jurisdiction as a through highway and install STOP (RI-1) signs in a like manner. Refer to CVC 21354. Standard: No local authority shall erect or maintain any STOP (111-1) sign or other traffic control device requiring a stop, on any State highway, except by permission of the Department of Transportation. Refer to CVC 21353. ' Support: The Department of Transportation will grant such permission only when an investigation indicates that the STOP sign will benefit traffic. May 20, 2004 1_ C oA?, t4 V~i k I CA I E~ r' N T ft l 4 . 7060° AUTHORITY TO INSTALL OFFICIAL TRAFFIC-CONTROL DEVICES: The city traffic engineer shall have the power and duty to determine the location of and to place and maintain or cause to be placed and maintained official traffic-control devices52(7) when and as required to make effective the provisions of this chapter or when he may deem such official traffic-control devices necessary or proper to regulate traffic or to guide or warn traffic. (Ord. 553, §1, adopted 1963) 7061: AUTHORITY TOE CT CERTAIN OFFICIAL TRAFFIC-CONTROL DEVICES ENUMERATED: The authority herein granted to the city traffic engineer to locate, place and maintain official traffic-control devices includes, but is not necessarily confined to, the authority to locate, place and maintain warning signs to caution drivers of the need for added alertness or reduction in speed, regulatory signs, including speed signs, stop signs, yield signs, traffic signals and alternating signals, to inform motorists of regulations n governing movement, guide signs for guidance and directional information and construction signs, which may include warning, regulatory and guide signs. (Ord. 553, §4, adopted 1963)