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An impact attenuator, also known as a crash cushion, crash attenuator, or cowboy cushion, is a device intended to reduce the damage to structures, vehicles, and motorists resulting from a motor vehicle collision. Impact attenuators are designed to absorb the colliding vehicle's kinetic energy.
The National Cooperative Highway Research Program was established in 1962 under TRB. Governments needed to tackle what Rex M. Whitton termed “clearly a supreme challenge to research”: moving people and goods in cities by using a fixed percentage of highway funding dedicated to research.
Contract Services offers a wide range of services including research, development, testing, and analysis in the following areas: Vehicle components, crashworthiness, crash avoidance, bio mechanics, test devices, test procedures, product evaluations, mechanical support, and test driving.
During times of darkness, commercial vehicles can see ahead about 250 feet with low beams, and about 350–500 feet with high beams. [1] This clear distance corresponds to a maximum safe speed of 52 mph and 65-81 mph respectively on dry pavement with good tires, [ 107 ] [ 116 ] which is attenuated further by convex and lateral road curvature ...
Bamboo Stretch-Knit Pajama Set. These are the softest things I've ever worn and I believe they're worth every penny. I love comfy pajamas and typically wear a simple $30 pair.
Traffic barrier with a pedestrian guardrail behind it. Traffic barriers (known in North America as guardrails or guard rails, [1] in Britain as crash barriers, [2] and in auto racing as Armco barriers [3]) keep vehicles within their roadway and prevent them from colliding with dangerous obstacles such as boulders, sign supports, trees, bridge abutments, buildings, walls, and large storm drains ...
The cassowary looks like a relic from another geologic era – it’s as tall as a person, has glossy black feathers and piercing eyes, walks on two feet, can weigh up to 140 pounds, and has a ...
VASCAR is a device that semi-automates the timing and average speed calculation of the original manually operated "speed trap". An observer on the ground, in a vehicle or in the air simply presses a button as a vehicle passes two landmarks that are a known distance apart, typically several hundred metres.