Future travel demand and its implications for transportation infrastructure investments in the Texas Triangle.
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2009-03-01
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Edition:Final report.
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Abstract:This study takes a megaregion approach to project future travel demand and choice of transport
modes in the Texas Triangle, which is encompassed by four major metropolitan areas, Dallas-Fort
Worth, Houston, San Antonio, and Austin. The model was developed based on three behavioral
characteristics of human travel. First, as income grows, demand for more and faster mobility
increases. Second, on average, individuals allocate 1-1.5 hours per capita per day for travel.
Third, people allocate 10-15% of per capita personal income for transportation related expenses.
Measured by person-kilometers of travel (PKT), the total mobility demand in the Triangle region
is projected to grow nearly four times from 480 billion in year 2000 to 1.8 trillion in year 2050.
Per capita PKT is expected to increase from 32,700 to 61,000 for the same time period. The
projections show that more than 70% of the year 2050 travel demand likely comes from highspeed
travel at 600 km per hour..The study results call for serious consideration of investing in
high-speed travel in the form of High Speed Rail (HSP) now in order to accommodate the future
travel demand in the Triangle Region.
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