caltrans lane closure charts

During night operations, the vehicles should have their headlights turned off and their hazard lights and flashing amber lights turned on. Verify that crash cushion module arrays are installed according to the manufacturers instructions. If differences exist, try to make them readily apparent. Reviewing periodically the traffic control setup for each work zone and discussing any deficiencies with the resident engineer. During routine visits to the project, construction engineers should also review signing, delineation, construction contingency plans, and general traffic handling. Discuss the contingency plan at the project partnering or preconstruction meeting. The following procedures are intended to assist resident engineers in obtaining and tracking COZEEP services and to help Caltrans reconcile the CHP billing system and facilitate payment to the CHP. Verify no-passing zone signs are removed when no longer required. Evaluate the COZEEP use criteria for lane closures on freeway-to-freeway connectors and for night closures of exit and entrance ramps. 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. Select a District or Statewide to start. Do not use a reduced regulatory speed limit as a substitute for other means of creating a safe roadway. During these reviews, examine the locations of planned roadside obstacles as well as protective safety devices, signs, striping, detours, falsework, temporary railing, attenuators, and clear recovery zones. Reported closures to include freeway mainline, local roads, and interchange ramps. Verify temporary pavement markers comply with Section 81-3, Pavement Markers, of the Standard Specifications, except for the waiting period before placing pavement markers on new asphalt concrete. Published: Feb 06, 2023 California Invests Nearly $1 Billion for Transportation Improvements Also, verify that flagging stations are laid out correctly, are visible to approaching traffic, are illuminated during nighttime, and have correct advance warning signs. Obliterated traffic stripes and markings should not be visible to drivers as pavement delineation during the day, at night, and under all weather conditions. 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. Drivers should be able to read the entire message at least two times before passing the sign. Avoids putting pedestrians into conflicts with work vehicles, equipment, and operations and with vehicles moving through or around the job site. Frequently, the plans for stage construction, detour, or traffic handling will require arrays of temporary crash cushion modules. 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. 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. Caltrans should order early pickup only when traveler and worker safety will not be compromised. Unstable snow conditions have prompted closure of Highway 32 between Humboldt Rd in the Lomo area of Butte County and the Highway 36 junction in Tehama. Refer to the Oversight Resident Engineer Guidelines, Sections 3.2.2(d), Safety, and 5.2.1, Encroachment Permit, for further guidance. Check the contractors layout work. Avoid blinding drivers in approaching vehicles when adequately lighting work areas. In many cases, placing a PCMS behind existing guard railing will protect it. Inspect Category 2 temporary traffic control devices to confirm they are labeled with the FHWA acceptance letter code and the name of the manufacturer. View from List View from Map One Stop Shop Traveler Information link for Western US states: California, Oregon, Nevada and Washington. Visualize what effects changing conditions of visibility and lighting will create. 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. Obtain the name and contact information for the assigned onsite system coordinator. If the safe operating speed of traffic through a work zone is significantly less than the approach speed of highway traffic, a reduced work-zone regulatory speed limit may be established. Verify removal of any temporary delineation that conflicts with any subsequent or new traffic pattern for the area. Coordinate with the district public information office to provide the public with information on planned project road closures, new road openings, traffic rerouting, and changes in traffic conditions. To protect the highway from damage during storms. The CHP memorandum of understanding requires a minimum payment of 4 hours per officer. Verify the contractor offsets the approach end of Type K temporary railing by 15 feet minimum from the edge of an open traffic lane, according to Section 7-1.04 Public Safety, of the Standard Specifications. In metropolitan areas, this type of warning may be feasible with cooperation of the transportation management center. This notification allows Caltrans to coordinate work within the highway corridor. Providing for exit ramp traffic within the coned-off area may be difficult. Communication equipment and procedures to follow when communicating with the resident engineers field representatives during contingency plan activation. Review sheet T3B of the Standard Plans for staking requirements. COZEEP is not a baseline measurean important fact when resources are limited and CHP personnel may not be available when requested. Critical stage for each operation when the alternative or additional equipment, materials, or workers must be activated. Depending on the complexity of the work or the magnitude of anticipated effects, a TMP may provide closure charts, standard special provisions for maintaining traffic, traffic control plans, andfor major projectsa separate comprehensive report. The status in LCS will change to APPROVED. The LCS will notify the contractor by email of the approval or rejection. Allow the use of paint only if the temporary traffic stripe is not required to be removed. Do not exceed the maximums shown in the requirements listed in Section 4.3, Accessibility Design Standards, of Design Information Bulletin Number 82-06. The resident engineer administers the COZEEP program on the project. Use the standard formula for taper length shown in the California MUTCD or in the projects traffic control plan details. Connect closures by extending the tangents. District Construction should request an impact study for proposed prolonged ramp closures not formally considered in the planning or design phase. 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. Verify that pallet height is 4 inches or less. Review the closure requests for compliance with the closure requirements charts and other contract requirements. Report an Issue. When possible, implement temporary speed limit reductions in conjunction with a COZEEP operation. The closure will impact southbound Highway 70 between Woodruff Lane and Laurellen Road starting from 8 p.m. Friday (April 9) until 5 a.m. Monday (April 12). 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. When conditions prevent starting the temporary surfacing at a square joint on the existing pavement, a treatment such as a light sand seal can establish the continuity of the traveled lane. Do not allow the use of sandbags. Traffic queuesContain traffic queues completely within the advance warning signs of any closure. 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. Verify the contractor completely installs the traffic control system before commencing work. Adequate maneuver room at critical points is an important factor in preventing accidents. A contractors failure to perform is cause to suspend work. Portable Changeable Message Signs (PCMS) are required only during times, places, or activities stated in the plans and specifications and are not required when the traffic control system is nonoperational or for discretionary use. Timelines for the contractor and the engineer to meet at the job site, review progress, and forecast when work will be stopped to open the lane, shoulder, ramp, or route to the public. Check railing alignment for any substantial offset to each other. If the contractor cannot address the traffic safety issue and it is not safe to suspend the work, request that the contractor take all steps necessary to provide for traffic safety and allow only the work to continue that had started at the time the issue was recognized. Reviews the TMP and traffic contingency plan for constructability issues. Caltrans Highway Information Network (CHIN) Incidents CHIN incidents that involve closed lanes are indicated by orange triangular markers. 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. Treat the traffic lanethe path the car is intended to followas a critical element of the roadway. Verify telescoping flag trees are from a commercial-quality material manufacturer. Updated information available at # caltrans8 TMC ALERT The design and construction at the contractors expense, when the contractors means and methods require the closure of an existing pedestrian route. To establish the geometry, markings, devices, and signs that existed during the project, maintain in sufficient detail a record of the placement into service, the changes, and the discontinuance of roadways and detours. Review these requirements with the contractors before work starts. Refer to Section 7-1.04, Public Safety, of the. Critical work activities are those performed in a closure that would render any portion of the traveled way unsuitable for public traffic use. Construction area signs, except those used in traffic control systems for closures, are paid for as a lump sum item. Verify that automated flagger assistance devices (AFAD) comply with the requirements in Section 12-3.38 Automated Flagger Assistance Devices of the Standard Specifications. . Once assigned to the project, do the following: When others administer the contract, oversight of traffic through and around a work zone involves overseeing and working with the local agency or private entitys resident engineer.

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