1871-1963 20thcentury avery bicycles citizenparticipation citytraffic congresses cy(cyrusstevens) cycling designandconstruction ecologicalassessment(biology) england environmentalaspects environmentalimpactstatements etc evaluation greatbritain handbooks he355 highwaycapacity highwayengineering history infrastructure(economics) landuse londonmetropolitanarea management manuals mathematicalmodels pavements planning roads safetymeasures streets trafficcongestion trafficengineering trafficestimation trafficflow transportation transportationandstate transportationengineering unitedstates urbantransportation