In long-term work zones on multilane highways and/or freeways, the Federal Highway Administration has interpreted the Manual on Uniform Traffic Control Devices to mean that only one advance warning … [Read more...] about Public Opinion and Understanding of Advance Warning Arrow Displays Used in Short-Term, Mobile, and Moving Work Zones
Maintenance Equipment
Requirements for work or shadow vehicles to have Truck-Mounted Attenuator (TMA)
Caltran's policy for maintenance operations is as follows: When closing a lane, a barrier vehicle or a shadow vehicle shall be used for the installation of the signs and the FAS if they can be placed … [Read more...] about Requirements for work or shadow vehicles to have Truck-Mounted Attenuator (TMA)
Requirements for work or shadow vehicles to have Truck-Mounted Attenuator (TMA)
Illinois requires that work zone lane closures be set up in the direction of traffic flow. Vehicles used in this process may work out of the closed lane. Work zone take-down is done in the reverse … [Read more...] about Requirements for work or shadow vehicles to have Truck-Mounted Attenuator (TMA)
Requirements for work or shadow vehicles to have Truck-Mounted Attenuator (TMA)
Michigan does not require the work vehicle to have a TMA. It does not require truck-mounted attenuators (TMAs) or a shadow vehicle to be used when setting up a lane closure. In its TMA guidelines, … [Read more...] about Requirements for work or shadow vehicles to have Truck-Mounted Attenuator (TMA)
Truck-Mounted Attenuator (TMA) requirement
WSDOT does not require the use of TMAs but they are highly recommended for many work operations. For WSDOT construction projects TMAs are routinely included as a per each bid item in the contract. If … [Read more...] about Truck-Mounted Attenuator (TMA) requirement
Synthesis of Best Practice for Increasing Protection and Visibility of Highway Maintenance Vehicles
The purpose of this research project is to study the current practices in enhancing visibility and protection of highway maintenance vehicles involved in mocing operations such as snow removal and … [Read more...] about Synthesis of Best Practice for Increasing Protection and Visibility of Highway Maintenance Vehicles