Abstract
The main objective of this research is to evaluate the effectiveness of various traffic calming measures on achieving their predetermined objectives. The first stage focused on the influence of measures like Speed table, Rumble strips, Road studs and Lane narrowing implemented in isolation under the same conditions, on the speed of unimpeded vehicles has been investigated by evaluating differences in speed profiles of individual vehicles. Their effect on safety was assessed by comparing the accident data before and after installation of these measures. The second stage measured the operating speeds of vehicles passing through successive measures using a GPS based mobile application, Speedometer in 2 seconds interval to have an insight on the relationship between spacing and speed. The raw speed data were analysed and formed significant relationships which formed the basis of a multiple linear regression model for the speed profile of unimpeded vehicles in a given traffic calmed link.
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