Major trends affecting the future of the United States and the world will dramatically reshape transportation priorities and needs. The American Association of State Highway and Transportation Officials established the NCHRP Project 20-83 research series to examine global and domestic long-range strategic issues and their implications for departments of transportation (DOTs) to help prepare the DOTs for the challenges and benefits created by these trends. NCHRP Report 750: Strategic Issues Facing Transportation, Volume 6: The Effects of Socio-Demographics on Future Travel Demand is the sixth report in this series. This report presents the results of research on how socio-demographic changes over the next 30 to 50 years may impact travel demand at the regional level. It is accompanied by a software tool, Impacts 2050, designed to support the long-term planning activities of transportation agencies. Other volumes in this series currently available include: • NCHRP Report 750: Strategic Issues Facing Transportation, Volume 1: Scenario Planning for Freight Transportation Infrastructure Investment (http://www.trb.org/main/blurbs/168694.aspx); • NCHRP Report 750: Strategic Issues Facing Transportation, Volume 2: Climate Change, Extreme Weather Events, and the Highway System: Practitioner’s Guide and Research Report (http://www.trb.org/Main/Blurbs/169781.aspx); • NCHRP Report 750: Strategic Issues Facing Transportation, NCHRP Report 750: Strategic Issues Facing Transportation, Volume 3: Expediting Future Technologies for Enhancing Transportation System Performance (http://www.trb.org/Main/Blurbs/170083.aspx); • NCHRP Report 750: Strategic Issues Facing Transportation, Volume 4: Sustainability as an Organizing Principle for Transportation Agencies (http://www.trb.org/Main/Blurbs/170762.aspx); and • NCHRP Report 750: Strategic Issues Facing Transportation, Volume 5: Preparing State Transportation Agencies for an Uncertain Energy Future (http://www.trb.org/Main/Blurbs/170763.aspx). (Author/publisher)
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