Empirical evidence on induced traffic

摘要: Disparate evidence indicates that the provision of extra road capacity results in a greater volume traffic. The amount traffic must be heavily dependent on context, size and location schemes, but an appropriate average value is given by elasticity with respect to travel time about −0.5 short term, up −1.0 long term. As result, improvement has induced additional 10% base term 20% term: individual schemes at double this level may not very unusual, especially for peak periods. Induced particularly seen alternative routes improvements are intended relieve.