Trafikhastighet
Trafikhastighet is a term used to describe the speed at which vehicles travel on roads, and it can refer to both the observed speeds of traffic and the speeds allowed by traffic regulations. In planning and research, trafikhastighet is commonly expressed in kilometers per hour (km/h) and is often analyzed using specific measures such as the 85th percentile speed, mean speed, or distribution of speeds. The 85th percentile speed is frequently used as a basis for setting speed limits because it reflects the speed at which most traffic naturally flows under given conditions.
Measuring trafikhastighet involves various data sources and technologies, including road- or pavement-mounted detectors, radar, camera systems,
Multiple factors influence trafikhastighet. Road geometry (lanes, curves, gradients), surface conditions, and road maintenance affect driving
Safety and efficiency trade-offs are central to trafikhastighet. Higher speeds can shorten travel times but increase