This second edition of the highly successful Understanding Traffic Systems demonstrates techniques for examining traffic problems, through good information and processing. Issues addressed include: traffic flow, survey planning, data collection, analysis and techniques for developing and improving traffic systems. 'The stated aim of this book is to introduce the principle techniques used by the traffic engineer or transport planner to examine traffic problems. The goal is achieved and this comprehensive text scores full marks for its emphasis on the essential role of traffic data...Aspiring traffic engineers will find the book useful for obtaining an understanding about the rold of traffic data, while the cogent and logical approach to theory is also likely to distinguish this book as a teaching text...this text provides excellent coverage of all of the main techniques likely to be employed by the traffic analyst from saturation flow measurement to spot speed recording.' Journal of Transport Geography