Many studies on drivers' speed selections behaviour have been reported in the last decade. Most previous studies have, however, concentrated on the relationship between drivers' speed selection and road/vehicle characteristics without considering other important factors such as personal characteristics and drivers' perception of speed limit. This paper analyses Korean drivers' speed selection behaviour by taking into account such factors as trip characteristics in addition to personal, vehicular, and attitudinal factors. Speed selection behaviour is measured by a categorical measure over speed limit, and an ordered probit model is used to econometrically estimate the speed behaviour equation. The results are as follows: (i) male drivers with higher income tend to drive faster, and experienced drivers drive more higher speed than others; (ii) vehicles with more safety features such as ABS and Air-bag go slower than vehicles with less safety features; (iii) trip distance and frequency user of the road are important factors for speed selection behaviour; (iv) perceived speed limit on road and expectation of being caught for speeding are an important factor for driving behaviour. (A)
Abstract