John Hennessy III,
P.E.
by Mary Scott Nabers It is shocking to realize that more than 42% of America’s 617,000 bridges are more than half a century old, and one-third of them are in dire need of repair or replacement. Even more sobering is the fact that 46,000 U.S. bridges are considered structurally deficient or in poor condition, given that […]
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This study estimates the accessibility to jobs by transit and walking for each of the United States’ 11 million census blocks, and analyzes these data in 49 of the 50 largest (by population) metropolitan areas. Travel times by transit are calculated using detailed pedestrian networks and full transit schedules for the 7:00 – 9:00 AM period. The calculations include all components of a transit journey, including “last mile” access and egress walking segments and transfers, and account for minute-by-minute variations in service frequency.
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Chicago, Boston, New York City, San Francisco and Washington, DC are home to America’s largest, most extensive public transportation systems. MPA@UNC has created a visualization of the history and development of each city’s system to show how millions of Americans travel daily via mass transit.
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AMERICAN PUBLIC TRANSPORTATION ASSOCIATION
Public transportation ridership in the third quarter of 2011 increased 2 percent over 2010. Over 51 million more trips were taken on public transportation in the third quarter compared to the same period last year. Ridership increased across all modes. Improving regional economic conditions, higher gas prices, and new service extensions all contributed to the increase.
AMERICAN PUBLIC TRANSPORTATION ASSOCIATION
Public transportation is an enterprise with expenditure of $55 billion in the United States. There has been a steady growth trend over the past three decades, with long-term economic and social trends (population, energy, public choice) all pointing to an even more prominent future standing. Since 1980, the number of fixed-guideway systems has grown exponentially with a bevy of projects positioned to systems has grown exponentially with a bevy of projects positioned to become the next generation of investment. Investment from all levels of government is on a long-term upward trend, and public support for more and better public transportation, as measured through ridership and public approval of transit ballot measures (a 73 % approval rate over the past 12 years) continues to increase.
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