Removal of the traffic control systemRemove all workers and equipment from the roadway. TMP strategies are designed to maintain additional delays below this maximum threshold, that is, less than 15 or 20 minutes. Create a physical facility that will encourage motorists to appropriately guide their vehicles on the intended path of travel and make it possible for the vehicle to perform as intended. Other closures determined on a project-specific basis. The request may be processed under the G-12 process or require a California Transportation Commission supplemental vote. Check sign posts to confirm compliance with breakaway features. When changes are necessary, make one change at a time. Use the most current edition of the American Traffic Safety Services Association (ATSSA) publication Quality Guidelines for Temporary Traffic Control Devices and Features to confirm acceptability of traffic control devices. Pallets that exceed this height raise the sand in the crash cushions above an acceptable level. This section provides guidelines for inspecting temporary traffic control devices in construction areas. Type K temporary railing placed within 10 feet of a traffic lane requires a reflector on each rail unit. Materials produced offsite and delivered to a job site, such as asphalt concrete and concrete, can be delayed by events including plant breakdown, loss of trucking, or trucking delayed by traffic congestion because of accidents or by the project itself. Be aware that reductions in the width or number of lanes affect the capacity and flow of traffic. Directs the termination or modification of active planned lane closure operations when traffic delays become significant, without compromising traveler or worker safety. The CHP will submit the COZEEP service summary electronically for payment with a confirming hard copy to the district COZEEP coordinator. For continuous construction work zone speed limit reduction, verify that advisory warning signs are posted to alert motorist of the roadway condition as specified and as shown on the standard plans. Verify that the pavement was not damaged during removal. 18h. California code are designated by (CA). Chapter 4: Construction Details, Section 12: Temporary Traffic Control. Review the Public Safety section in the contract. 2170. Avoid sharply angled tapers. Reducing standards on existing roadways, such as sharpening curves and shortening auxiliary lanes, can adversely affect operating characteristics. A square joint is even more necessary when asphalt concrete joins concrete, because at night and during rainy weather, the joints often stand out more prominently than traffic lane lines. 3. (Under ideal conditions, all advance warning signs and the taper would be in a tangent with the taper placed on a slight upgrade for improved visibility.). ROAD TYPE DISTANCE BETWEEN SIGNS A B C RURAL EXPRESSWAY / FREEWAY 100 350 500 1000 350 500 350 500 1500 2640 For speed of 45 mph or more, L = WS For speed of 40 mph or less, L = WS/60 * - For other offsets, use the following merging taper length formula for L: * URBAN - 25 mph OR LESS URBAN - MORE THAN 25 mph TO 40 mph URBAN - MORE THAN 40 . The CSC should document the reviews in the project records and discuss concerns about the traffic control plan or traffic safety with the construction engineer, traffic engineer, and resident engineer. Acts as the focal point for development and implementation of TMPs. 124000 and that a designed temporary pedestrian access route (TPAR) is part of the contract plans or that the TPAR Standard Plans are appropriate for the pedestrian route affected by the work activities. If the equipment is not available, make other arrangements as soon as possible. Verify the proper types of flashing arrow signs are used. Use Form CEM-2302, Temporary Pedestrian Access Route Weekly Inspection Report, to document that TPARs are maintained in compliance during the course of work. Sometimes through traffic tends to follow an exiting vehicle. Request the user interface software and provide it to the Transportation Management Center for installation. Verify that pallet height is 4 inches or less. Consider additional signage and temporary lighting for crossovers. GIS Maps. District Construction should review the traffic control plan before the district submits the plans, specifications, and estimate to headquarters. If a change order modifies the plans, construction engineers should take steps necessary to verify that the modified plans are adequate to provide the highest level of traffic safety and service consistent with conditions actually encountered. If you cannot contact the local CHP coordinator in advance and the officer reports for duty, the fee will be equal to 4 hours of overtime pay and mileage incurred, if any. Refer to Section 4-1202C (1a), Lane Closure System, of this manual. In accordance with the agreement, cancellations received less than 24 hours before work is to begin will be charged a cancellation fee of $50. Caltrans. Verify temporary pavement delineation is maintained until it is replaced with the permanent pavement delineation. Message Signs QuickMap Know before you go. When necessary, ask the contractor to adjust placement or message content of signs based on changing project or traffic conditions. Construction situations frequently require a lateral shifting of traffic in relation to the normal path of travel and may involve dropping a lane. End-of-queue management is desirable at locations where traffic queues are anticipated. Generally such projects are intermediate type projects that cause minimal/moderate work zone impacts. When it is not possible to maintain a width of 60 inches, provide a 60-by-60inch passing space at least every 200 feet to allow individuals in wheelchairs to pass. For public safety, when flaggers are not shown on the plans or specified and when ordered by the engineer, providing flaggers is change order work for which Caltrans pays 100 percent. A median barrier, bridge rail, or retaining wall may block worker escape routes. Confirm temporary flashing beacon systems comply with the requirements in Section 12-3.34, Temporary Flashing Beacon Systems, of the Standard Specifications. The special provisions specify the minimum penalty of $1,000 for each 10 minutes and can exceed the minimum depending on the duration of the delay, traffic volumes, and the highway facility. Remind the contractor of Americans with Disabilities Act requirements if the traffic control system will affect pedestrian traffic and a temporary pedestrian access route is needed. The purpose of the gaps is to allow drivers and passengers of vehicles to get behind the barrier in case of a disabled vehicle. You may also consult the district Traffic Operations office. Critical work activities are those performed in a closure that would render any portion of the traveled way unsuitable for public traffic use. Traffic queuesContain traffic queues completely within the advance warning signs of any closure. Verify the contractor cements the bases of channelizers used for temporary edge line delineation as specified. Anticipated cooling times needed for asphalt concrete pavements before opening a lane, shoulder, or ramp to public traffic. Inspect the signs and equipment the contractor proposes to use, at the contractors or subcontractors yard if possible, before their first use. The contract item for the traffic control system includes payment for portable signs, cones, delineators, and flashing arrow signs as shown on the plans for the traffic control system and impact attenuator vehicle. Verify the contractor notifies and cooperates with local authorities wherever the local authorities regulate traffic. To avoid having to obtain more than one speed reduction order per project, verify that the limits requested in the order cover the maximum distance where reduced speed would be required at any time during the life of the contract. Mn/DOT allowable lane closure chart example (9)16 Figure 11. Make sure your designated staff and other state staff involved with traffic control attend the meeting when possible. Refer to Section 5-1.20 Coordination with Other Entities, of the Standard Specifications, if applicable, and the special provisions. Midblock worksites should not cause pedestrians to skirt the worksite or make a midblock crossing. During daylight operations, the vehicles facing oncoming traffic should have their headlights and their flashing amber lights turned on at all times. Inspect crash cushion modules to confirm they comply with the specification and manufacturer requirements. When an AFAD becomes inoperable, notify the contractor to immediately replace it with an identical device, use a flagger with the appropriate-size advance warning sign and gate cones as shown in Standard Plan T13 or stop all construction activities that require the device to be in operation. Lane closure lasting 7 hours on Toll Bridge for Bridge Construction affecting #1, #2, #3 lane(s) in District: 4 From: SFOBB Pier 1 (W-1) San Francisco to EB On from YBI Hillcrest Road San Francisco View on Google Maps ID: C80JA-0004-2023-03-07-23:01:00 Verify that the contractor uses the LCS Mobile website to status closures in a timely manner. Flash flooding and mudslides have closed some stretches on I- 5 and SR-58. The California Highway Patrol. The railroad company should be represented at a preconstruction meeting to discuss the schedule of work over or near railroad facilities. If the portable signal system is out of operation, the contractor must provide flaggers to control the traffic until the traffic signals are in operation. Remind the contractor to notify the regional notification centers before digging for the installation of signposts. Caltrans lane closure charts. Avoid blinding drivers in approaching vehicles when adequately lighting work areas. Observe the flagging operation to verify that flaggers are using the correct procedures for directing motorists in accordance with California Code of Regulations, Title 8, Section 1599,(8 CCR 1599) Flaggers, and Chapter 6E, Flagger Control, of the California MUTCD. Perform additional reviews periodically throughout the construction project, since changes may affect the facilitys effectiveness. In addition, the plans provide traffic handling details during construction of the structure work per Traffic Handling Plans and related plans including TH-3 (Sheet 54 of advertised plans). ALT ALT Do not allow the use of power from private parties to power the temporary flashing beacon system. Refer to Part 6, Section 6H, Typical Applications, and figures 6H-28 and 6H-29 of the California MUTCD. The special bulbs used with solar signs have much narrower beams than conventional bulbs and, therefore, require greater care while being aimed. Both the senior officer and the project supervisor should sign the completed COZEEP daily report. Provide the following information to the district railroad liaison agent who will forward it to the Public Utilities Commission: If construction involves structure work, send a copy of the above information to Structure Design. Request a certificate of compliance for each portable changeable message sign. Use the guidelines when determining when and how to use COZEEP on a project. Ideally, the assistant resident engineer should be able to communicate directly with the contractors maintenance person by radio or cell phone. Significant traffic effectan individual traffic delay of 30 minutes or more above normal travel time during recurring congestion on the existing facility. Confirm the contractor maintains barricades in good condition and keeps the reflective surfaces clean. They are not detectable by persons with visual disabilities. Verify the contractor uses an impact attenuator vehicle as a shadow vehicle in moving closures and during placement and removal of components in stationary closures. The California MUTCD Sign Charts contain commonly used signs in California, and is not meant to be used as a comprehensive or stand-alone design tool. If automated flagger assistance devices (AFAD) bid item is not shown on the bid item list, providing AFAD is change order work. Confirm supporting steel pipes are placed on the traffic side of the screen so that if a panel becomes dislodged, the plywood will fall away from traffic. Anticipate needs for special treatments such as lighting. The state representative assigned to the project should make sure the local agency resident engineer performs the duties as outlined above. Work with the DTM to verify that project activities conform to the TMP, contingency plans are implemented when necessary, and disruption to the traveling public is minimized and does not exceed limits established in the TMP. The ideal transition is on a horizontal tangent with a slightly rising grade at the end of a level approach. If a discrepancy occurs between the contract plans and specifications and the California MUTCD, the plans and specifications govern. Verify that all traffic control devices are correctly placed and functioning properly. In that case, portable flashing beacons are paid for as part of the contract item for the traffic control system. Return exceptions to the district and area offices involved for resolution. The contractor should develop a plan for handling emergencies and emergency vehicles in the control zone. Verify the pavement is clean and dry and the contractor places the channelizers during conditions that meet the required temperatures. Notify the district transportation management center when unforeseen traffic delays result from planned work. Obtain a copy of the manufacturers operating instructions. Verify that the trailer bearing the sign can be leveled and that the sign operates within the required minimum and maximum heights. Confirm that the contractors closure requests comply with the closure charts. Verify that automated work zone information systems comply with the general system functionality, motorist information messages, system communications, traffic data acquisition, and user interface specification requirements. According to the Authorized Material List for Signing and Delineation Materials, 0.5-inch Intelplast Intelcel or similar material is authorized, and according to FHWA Work Zone Letter 85 from the FHWAs Safety Program work zone device letter archive website, this type of sign substrate is authorized for use on Type 3 barricades. Cold storms bringing wind, rain and low-elevation snow heavy at times are forecast through early March. Verify telescoping flag trees maintain an upright position when being used. It is not necessary to restudy impact previously studied during planning and design unless significant commercial development has occurred in the area in the interim. Flashing beacons shall be placed at the locations indicated for in size and shall be orange or fluorescent red-orange in color. The contractor develops a contingency plan and submits it within 1 day of the resident engineers request or as specified in the Standard Special Provisions. Do not allow the contractor to mix different types of temporary traffic control devices on the same alignment. The lump sum payment for this item includes all costs for placement, operation, maintenance, relocation, and removal of the Automated Work Zone Information System. Check that the attenuator meets the test level requirement for the posted speed limit. Consult your district COZEEP coordinator for a current estimate of hourly and mileage COZEEP cost. Confirm the signs display only pre-approved messages and that the messages conform to the Changeable Message Sign Guidelines, and district and Caltrans policy. Emerald Grove Ave from Riverview Av to End of County Maintained Road. Review Sections 12-4.04, Temporary Pedestrian Access Routes, and 16-2.02, Temporary Pedestrian Facilities, of the Standard Specifications for the temporary pedestrian facilities requirements. For guidelines on publicizing information, refer to Section 1-206, Relations With the Media and Traveling Public, of this manual. Reported closures to include freeway mainline, local roads, and interchange ramps. Calculate the total estimated travel time and mileage, and enter the total on the COZEEP daily report. Verify the crash cushion array is in place before opening traffic lanes adjacent to the protected obstacle. TMPs include strategies to minimize work-related traffic delays while reducing the overall duration of work activities where appropriate. The records form may vary according to the magnitude and complexity of the subject. Caltrans reimburses CHP officers who provide COZEEP services on overtime at time and a half. Do not permit any closures until the contractor submits this plan and it is authorized in accordance with the specifications. The contingency plan identifies alternative or additional equipment, materials, or workers necessary to allow continuing activities and on-time reopening of closures if a problem occurs. Do not use the contract item for Type K temporary railing to pay for temporary railing that is placed to fulfill the requirements of the Public Safety section. For conditions shown on the plans that need adjustment, discuss proposed changes with the district Traffic Operations Office. Achieving this transition is worthwhile, even though it may extend the traffic control system farther than the minimum necessary to clear the work zone. The contingency action plans should include detailed operations undertaken in case a major activity passes the late-finish milestone. Process, justify, and document the request the same way as any other fund request. Verify that the line of sight visibility in the field meets sight distance standards. Design for the least change in alignment, speed, or both. Verify that construction area signs are placed outside the traveled way, do not block or protrude more than 4 inches into bicycle and pedestrian routes, and comply with Americans with Disabilities Act requirements. The resident engineer administers the COZEEP program on the project. Do not allow the use of commercial pallets that exceed the maximum height. The transition should be accessed before such features. Complete training in one sitting. San Bernardino County Transportation Authority (SBCTA) Please visit SR 210 Base Line Project's website for the latest news regarding the 210 freeway construction. If you exit without completing the training, you will have to start over.
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