20thcentury automaticlocationsystems bartontransport bibliography busdrivers busdriving buses busindustry commercialvehicles communicationsystems congresses consolidationandmergerofcorporations dataprocessing economicaspects effectofterrorismon employees england fares finance he5606 he5623 history ibadan laborsupply lawandlegislation localtransit london maintenanceandrepair management mobilecommunicationsystems motors(diesel) motorvehicles nigeria northernireland paratransitservices planning pollutioncontroldevices prevention productionscheduling radioequipment railroads reliability ridesharing rulesandpractice ruralconditions safetymeasures safetyregulations securitymeasures socialaspects socialconflict street-railroads terrorism tl232 trafficengineering transportation transportationandstate trolleybuses trucking trucks unitedstates urbantransportation vandalism