A “smart work zone system” is the application of computers, communications, and sensor technology to freeway transportation and would possess the following general characteristics: Real-time The system analyzes traffic flow data in real-time, providing frequently updated information to motorists. Portable The system is portable, allowing its installation (with minor modifications as necessary) at different locations. Automated The system operates in an automated manner …
MASH
Manual for Assessing Safety Hardware (MASH) presents uniform guidelines for crash testing permanent and temporary highway safety features and recommends evaluation criteria to assess test results. MASH ratings include TL-1, TL-2, TL-3, TL-4, TL-5, and TL-6 but the criteria to achieve the ratings have been updated since the use of NCHRP reports. Each rating shows the size and speed of …
Crash cushion
Also known as an impact attenuator, is a device intended to reduce damage to structures, vehicles, and motorists resulting from a motor vehicle collision. Impact attenuators are designed to absorb the colliding vehicle’s kinetic energy. They may also be designed to redirect the vehicle away from the hazard or away from roadway machinery and workers. Impact attenuators are usually placed …
Longitudinal Barrier
This listing contains barriers, such as guardrail, median barrier, bridge railings, and transitions, that have been issued an Eligibility Letter by FHWA based on AASHTO MASH criteria.
Barrier Deflection
Deflection – Also known as lateral deflection. The distance the barrier travels laterally during impact, under the guidance of crash testing standards. Note that lateral deflection can be expected whether the barriers are anchored or unanchored.
Redirective Principal for Crash Cushions
Like a gating attenuator, a re-directive attenuator requires more space. It deflects colliding vehicles back into the clear zone and away from danger. A non-redirective attenuator does not deflect and works to slow the colliding vehicle in place. Excerpt courtesy of Hill and Smith
Non-Gating Attenuator
Gating versus Non-Gating: When you hear an attenuator is “gating” or “non-gating,” it means an attenuator that is designed to allow a colliding vehicle to enter the clear zone where it can decelerate safely before coming into contact with any hazards. Non-gating attenuators fold away (or gate) when impacted from the side to allow vehicles to pass safely. They are …
WLR | Weekly Labor Report
Recaps the prior week’s labor by the employee by day, and it extrapolates labor and revenue for the month. It is compared to flash to determine if a branch is on track for revenue.
WHIP | WHIP Around
Mobile inspection used to perform vehicle pre and post trip inspections daily.
Weekly Open Rental Report | Enterprise Weekly Open Rental Report
A weekly report which shows rental activity through the Enterprise rental program.