Socioeconomic Characteristics of Speeding Behavior

Many studies on drivers' speeding behavior have been reported in the last decade. Most of the previous studies, however, have concentrated on the relationship between drivers' speeding behavior and road/vehicle characteristics, without considering other important factors such as personal characteristics and drivers' perception of the speed limit. This paper analyzes Korean drivers' speeding behavior by taking into account such factors as trip characteristics in addition to personal, vehicular, and attitudinal factors. Speeding behavior is measured by a categorical measure over the speed limit, and an ordered probit model is used to econometrically estimate the speeding behavior equation. Results indicated that i) male drivers with higher income tend to drive faster, and experienced drivers drive at higher speeds than others, ii) vehicles with more horsepower and vehicles with safety features go slower than vehicles with less safety features, iii) trip distance and frequent use of the road are important factors for speed selection behavior, and iv) perceived speed limit of the road and expectation of being caught for speeding are important factors for driving behavior.