energy demand / greenhouse gas emissions / technology framework / transport technology / energy intensity / fuel technologies / transport infrastructure / health services / travel demand / Well-designed transport systems / shift transport systems / conventional technologies / natural gas / vehicle technologies / people travel / low-emission technology improvement example / conventional petroleum-based systems / low-emission transportation system / sustainable transport systems / transport services / energy supply / sustainable transportation / social services / oil / access to jobs and services / car sharing / transport energy consumption / friendly travel modes / vehicular commuting/travel / sustainable transport solutions / technology components / transport demand management / overall energy demand / reduced greenhouse gas / vehicle technology / Transport systems / energy / /