Search results
Results from the WOW.Com Content Network
Road traffic safety refers to the methods and measures, such as traffic calming, to prevent road users from being killed or seriously injured. Typical road users include pedestrians , cyclists , motorists , passengers of vehicles, and passengers of on-road public transport , mainly buses and trams .
The alignment is the route of the road, defined as a series of horizontal tangents and curves. The profile is the vertical aspect of the road, including crest and sag curves, and the straight grade lines connecting them. The cross section shows the position and number of vehicle and bicycle lanes and sidewalks, along with their cross slope or ...
The surface of this type of vibrating coating line is distributed and scattered with raised bumps. Some bumps are coated with high-refractive-index glass beads.When a speeding vehicle runs over the raised road lines, it produces a strong warning vibration to remind the car driver of deviation from the lane. [1]
See three-way junction 5-1-1 A transportation and traffic information telephone hotline in some regions of the United States and Canada that was initially designated for road weather information. A Access road See frontage road Advisory speed limit A speed recommendation by a governing body. All-way stop or four-way stop An intersection system where traffic approaching it from all directions ...
It is developed by the California Department of Transportation (Caltrans) Division of Safety Programs "in substantial conformance to" the national Manual on Uniform Traffic Control Devices developed by the Federal Highway Administration. The first edition of the CA MUTCD was published in 2006, replacing an earlier supplement to the national MUTCD.
It is typically a long, sand- or gravel-filled lane connected to a steep downhill grade section of a main road, and is designed to accommodate large trucks or buses. It allows a moving vehicle's kinetic energy to be dissipated gradually in a controlled and relatively harmless way, helping the operator stop it safely.
Code 2 - Immediate risk of serious injury to a person or damage to property. Proceed lights and sirens. Permission granted to disobey road rules. Code 3 - Routine job. Proceed without lights or siren. Road rules must be obeyed. Code 4 - Negotiated response time. Proceed without lights or siren. Road rules must be obeyed.
Traffic signs or road signs are signs erected at the side of or above roads to give instructions or provide information to road users. The earliest signs were simple wooden or stone milestones . Later, signs with directional arms were introduced, for example the fingerposts in the United Kingdom and their wooden counterparts in Saxony .