As part of a wider study of freight transport undertaken in Pakistan during 1985-87 a survey of vehicle utilisation was carried out.Different vehicle activities were timed and recorded on a continuous basis for periods lasting from five days to four weeks. Using these data it was possible to investigate three aspects of time related costs:- (i) A series of elasticities relating trips to travel time showed that, in Pakistan's conditions, time savings following road investment are likely to be fully used. (ii) An analysis of vehicle time budgets found that freight vehicles were in active use (travelling, loading, and unloading) for more than 12 hours per day. (iii) Both time and distance could each independently provide a good explanation of tariffs. Although difficult to identify their separate influences, the best estimate suggests that time and distance account for 45 per cent and 55 per cent of tariffs respectively
Abstract