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A speed limiter is a governor used to limit the top speed of a vehicle. For some classes of vehicles and in some jurisdictions they are a statutory requirement, for some other vehicles the manufacturer provides a non-statutory system which may be fixed or programmable by the driver.
Traffic-sign (speed limit) recognition. Traffic-sign recognition (TSR) is a technology by which a vehicle is able to recognize the traffic signs put on the road e.g. "speed limit" or "children" or "turn ahead". This is part of the features collectively called ADAS. The technology is being developed by a variety of automotive suppliers to ...
A posted speed limit may only apply to that road or to all roads beyond the sign that defines them depending on local laws. The speed limit is commonly set at or below the 85th percentile speed (the operating speed which no more than 15% of traffic exceeds), [55] [56] [57] and in the US is frequently set 4 to 8 mph (6 to 13 km/h) below that ...
ISA was born in France when Saad and Malaterre (1982) carried out their study of driver behaviour with an in-car speed limiter. Actually, they did not really test Intelligent Speed Adaptation, because the system did not automatically set the correct speed limit; instead drivers had to set the limiter themselves, and, rather like a cruise control, they could set it as they chose.
The Revised Code of Washington has a set of default speed limits for various types of roads. Rules of the Road: 25 mph is too fast. Is there a lower speed limit for residential alleys?
The highest speed limit for undivided roads is 75 mph (121 km/h) in Texas. Undivided road speed limits vary greatly by state. Texas is the only state with a 75 mph (121 km/h) speed limit on 2 lane undivided roads, while most states east of the Mississippi are limited to 55 mph (89 km/h).
Texas is what many would consider a “driver-friendly” state, as its long roadways give drivers plenty of space to cruise. Here’s what to know before you push pedal to the metal.
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 ...