This paper looks at the relationship between initial speed and final speed at the approaches to rural cities and towns. It is based on an examination of individual vehicle speed data collected at five sites in two Australian States. Each vehicle had its speed measured at three locations: on approach (free speed in the 100 km/h zone); at the 60 km/h sign at the edge of the town/city; and at a point in between (transition zone). A number of different signs were erected in the transition zone, leading to sixteen data sets being developed, each containing individual vehicle speed data on 250 vehicles. Analysis of the data showed that the fastest 15 percent of cars as measured in the 100 km/h zone remained the fastest 15 percent remained the fastest 15 percent at both the transition zone and 60 km/h sign locations. It is considered that the findings of this study may have implications for the siting of speed control devices and enforcement practice at the approaches to rural cities and towns. (A)
Samenvatting