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...Transportation economics chapter topics history definition and scope of importance in systems evaluation demand supply cost analysis for case studies historical context up to the th century most important commercial cities world were maritime due relatively low costs water however invention steam engine eighteenth marked a watershed by allowing greater economy goods passengers therefore shifted balance favor land after war ii advancements road construction technology mass production automobile led increasing use highways currently highway accounts approximately all ton miles representing overall value freight over passenger terms person bts such modal shifts that have been observed years arose from improvements resulted reductions time turn increased availability lower prices services price stabilization equalization changes values urbanization equity locklin d p recent certain developments greatly influenced various modes these include deregulation industry which enabled shippers carr...