Verify that one type of crash cushion module is used for a single grouping or array. Verify the channelizers post is predominantly orange. Scheduled Times: 8:00 a.m. to 4:00 p.m. Expected Delay from Traffic Control due to Road Closure. Caltrans began a major project to retrofit the San Francisco-Oakland Bay Bridge to current seismic design standards in summer 1998 and expects to complete the work by winter 2014. . Drums used instead of cones, barricades, or delineators as part of a traffic control system or used as specified under Public Safety section in the contract are not to be paid for at contract item price. If new asphalt concrete joins existing asphalt concrete, the difference in texture and color between them creates a taper in the new traffic lane that may convey the wrong sense of direction, especially at night or in rain. The area where the surfacing joins the existing roadway can be critical. For example, compensate for a sharper curve with solutions such as increased lane width or a clear recovery zone. When full use is not possible, accommodate traffic by verifying a continuous roadway throughout the length of the project, achieved by using one or a combination of the following: The newly constructed highway or portions of it, A detour where traffic, including pedestrians and bicycles, is diverted over a temporary roadway, Passage of traffic through the work in progress. Describe the work by length, width, and unit of measure conforming to the appropriate progress pay items. 4-1202C (1a) Lane Closure System 4-1202C (2) Temporary Pedestrian Access Routes 4-1202C (3) Bridge Cleaning and Painting Activities 4-1202D Temporary Pavement Delineation 4-1202D (1) Temporary Pavement Markers 4-1203 During the Course of Work 4-1203A Flagging 4-1203B Temporary Traffic Control Devices 4-1203B (1) Traffic Cones Any part of the project within the limits stated in the order becomes a legal speed zone when signs are placed. Caltrans contracts, procedures, and guidelines form the basis for traffic-control measures throughout its construction projects and establish a baseline for operations statewide. Workers may operate vehicles opposite the flow of traffic inside a closed lane only with the prior authorization of the resident engineer. Confirm that the minimum lane widths in the standard special provisions and those shown on the Traffic Handling Plans match. Maintaining such closures is a full-time assignment, and the assigned worker should have no other duty. Use alternate methods to delineate this type of surface. Be aggressive in seeking changes to improve the situation. Design crossover transitions to the highest geometric standards within tolerable limits of cost. The California Highway Patrol. Direct the contractor to remove any temporary pavement delineation that conflicts with the permanent pavement delineation. Use tangent diagonal crossing in preference to reversing curves. The last level of review will be the COZEEP statewide coordinator. Contractor will collect 7 day 24 hour traffic counts from Caltrans. Verify that the line of sight visibility in the field meets sight distance standards. When multiple projects in one area occur at the same time, require contractors to coordinate their efforts by resolving schedule conflicts before submitting their schedules for closures, and verify there are no closure conflicts before implementation. Withhold some payment from progress pay estimates to cover the cost of removing temporary crash cushion modules. Confirm compliance with the minimum legibility distances. Caltrans TMP for the Bay Bridge Full Closure. Refer to Part 6, Chapter 6D, "Pedestrian and Worker Safety," of the California MUTCD. Verify the contractor delineates a PCMS with a taper consisting of nine traffic cones. Verify the contractor notifies and cooperates with local authorities wherever the local authorities regulate traffic. Order repainting when needed. Check that the sign complies with the visibility and legibility requirements. Do not hide the taper of a traffic control system behind a vertical or horizontal curve. The selected speed should be what a driver exercising due care would drive in normal conditions of light and weather. The following determine the safe speed of a vehicle: Design the temporary roadway for speeds consistent with the permanent roadway. Instead, the district coordinator should contact the statewide contract manager to verify the correct billing rates. Questions? Ask the contractor to replace channelizers that are displaced or fail to remain in an upright position. Take the following steps before work begins: Discuss any flagging operation with the contractor before the operation begins. If sight distance is not adequate, contact the district traffic engineer for suggestions or recommendations. Confirm the contractor installs a reflector on each rail unit placed within 10 feet of a traffic lane. Automated flagger assistance devices (AFAD) can be used in place of flagger to remove workers from the roadway to improve worker safety from traffic. A TMP is a program of activities for minimizing or alleviating work-related traffic delays through traffic-handling practices and strategies. Verify all new and used temporary railing elements comply with requirements for end connection and surface finish. Look in the resident engineers pending file for design assumptions and estimate calculations. 1. Verify the contractor completely installs the traffic control system before commencing work. Request a list of Category 2 temporary traffic control devices to be used on the project and copies of their Federal Highway Administration (FHWA) acceptance letters. Motorists who are forewarned of construction conditions may be more tolerant of delay and inconvenience and probably will be more alert and responsive to work zone traffic control. Before work begins, carefully review the plans, specifications, closure charts, and sheets T9 through T17 of the Standard Plans. These Standard Specifications sections apply to pedestrian facilities: Verify that the contractor adheres to the following: At the preconstruction conference, discuss the need for temporary pedestrian facilities and ADA requirements. Systems affecting traffic in both directionsInstall the first sign drivers will see traveling in the opposing direction. The cross slope must be no greater than 1:50 (2 percent) and the running slope no greater than 1:20 (5 percent). Closure Type All Full Only Closure Status to include: In Progress Completed Canceled No Status Time Period All Day (5 AM - 4 PM) Night (4 PM - 5 AM) Long Term Only (24 Hours+) When Status changed: Facility Carpool Mainline Connector On Ramp Off Ramp Other Pay special attention to locations where vertical or horizontal curvature restricts the sight distance. Caltrans Highway Information Network (CHIN) Incidents CHIN incidents that involve closed lanes are indicated by orange triangular markers. In urban and suburban areas with high vehicular traffic volumes, place the signs at intersections. Follow these guidelines and general considerations for reviewing and approving traffic control plans. Verify that the impact attenuator vehicle complies with all specification requirements. If the contractor is to place the traffic control system repeatedly in the same place, the contractor can request to mark on the shoulder the locations of advance warning signs, cones, and drums. The contingency action plans should include detailed operations undertaken in case a major activity passes the late-finish milestone. Use the guidelines when determining when and how to use COZEEP on a project. Do not exceed the maximums shown in the requirements listed in Section 4.3, Accessibility Design Standards, of Design Information Bulletin Number 82-06. Creating clear recovery zones may also require ordering staging of certain elements of the work, cleanup grading, and temporary placement or removal of materials. Make sure the temporary automated end of queue warning system is in operation only during work, unless special provisions require one for 24 hours a day, 7 days a week for certain construction activities. Place all remaining signs and devices in sequence through the work area. Consider how the shape and the light versus the shadow of falsework openings will appear in daytime and at night. The Angeles FOREST Highway is under our jurisdiction and closures for this highway can be found on our website. Refer to Section 4-1202C (1a), "Lane Closure System," of this manual. Urgent, unpredictable situationsminor or of short durationcan arise during the work and should be addressed using engineering judgment. Check railing alignment for any substantial offset to each other. Verify that the pavement was not damaged during removal. Rural locations with a high volume of truck traffic, steep downgrades, or both. TMP strategies are designed to maintain additional delays below this maximum threshold, that is, less than 15 or 20 minutes. Also, when possible, use barrier vehicles or an impact attenuator vehicle between the approaching motorist and workers on foot. Do not allow the use of a damaged impact attenuator vehicle. Lane Closures Emergency closures can be searched under District or Statewide. If advanced flaggers or additional flaggers are not shown or specified, then Caltrans pays 100 percent by change order. Verify that portable delineators meet the dimension requirements. Confirm the sign is placed where it is most visible to approaching motorists. The Code of Federal Regulations, Title 23, Section 630, Subpart J, Work Zone Safety and Mobility, (23 CFR 630 Subpart J) requires Caltrans to adopt a policy that implements TMPs on all federally funded highway projects. Keep pedestrian facilities clear of obstructions. The following guidelines are for measuring and paying for various traffic control devices for construction areas. Remind the contractor of the requirement to complete the LCS web-based training. This layer is updated from information provided by Caltrans Headquarters Communication Center in support of state emergency response efforts for 2022 incidents. Communication equipment and procedures to follow when communicating with the resident engineers field representatives during contingency plan activation. Verify temporary flashing beacon systems are relocated as work progresses according to the specifications. Document the reasons for COZEEP use. 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. Figures 6H-28 and 6H-29, Sidewalk Detour or Diversion, and Crosswalk Closures and Pedestrian Detours of the California MUTCD are examples for accommodating the needs and control of pedestrians. Regulatory speed limit signing may be considered during work activities when workers are present on foot and have direct exposure to vehicular traffic. Twenty-four-hour-a-day regulatory speed reductions require coordination with the local CHP office before implementation. Dated notations or revisions to plans may be helpful. Types include plastic traffic drums, portable delineators, channelizers, tubular markers, traffic cones, and Type 1 and Type 2 barricades. If the temporary automated end of queue warning system malfunctions for a cumulative period of 4 hours or more, no payment will be made for the day. The contractor is responsible for the replacement expenses. If automated flagger assistance devices (AFAD) bid item is not shown on the bid item list, providing AFAD is change order work. Notify the district transportation management center when unforeseen traffic delays result from planned work. Extend entrance ramps through the closed lane by projecting the left shoulder line. Directs the termination or modification of active planned lane closure operations when traffic delays become significant, without compromising traveler or worker safety. Review Sections 12-6, Temporary Pavement Delineation and 84-2, Traffic Stripes and Pavement Markings, of the Standard Specifications for temporary pavement delineation requirements. Construction activities such as night paving may be a deciding factor when the operation requires a large number of trucks into and out of the work area. Place a barrier across the full width of a closed sidewalk. When necessary, ask the contractor to adjust placement or message content of signs based on changing project or traffic conditions. When construction affects the pedestrian facility, the contractor should maintain a continuous unobstructed path connecting existing accessible elements, such as parking lots, or bus stops through the project. Provide hand railings on each side of pedestrian walkways as necessary to protect pedestrian traffic from construction operation hazards. California Department of Transportation (Caltrans) Colorado Department of Transportation (CDOT), Region 1 and Region 6 Indiana Department of Transportation (INDOT) . Lane Closure System (LCS) Mobile Statusing Instructions This training will take approximately 30 minutes to complete.
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