Each chapter is written by people eminent in the field. Unfortunately, it is impossible to cover all existing road pricing schemes worldwide in one book; but the schemes and topics addressed are chosen to be representative of leading-edge activity in road pricing, with wider lessons and implications than the particular schemes described. And the emphasis is on electronic systems, not cash or paper-based schemes (vignettes1) [1], often described as multi-lane free-flow – there are no toll barriers, and no need for vehicles to stop in order to pay; stopping is undesirable since it results in congestion, pollution and accidents.

每一章都是由该领域的知名人士撰写的。不幸的是，不可能在一本书中涵盖世界范围内所有现有的道路定价方案；但所讨论的方案和主题被选为代表道路定价的前沿活动，其教训和影响比所述的特定方案更广泛。重点是电子系统，而不是现金或纸质计划（vignettes1）[1]，通常被描述为多车道自由流动-没有收费障碍，车辆无需停车以支付费用；停车是不可取的，因为它会导致拥堵、污染和事故。