Hitz, J. S. (1977). Summary Statistics of the National Railroad-Highway Crossing Inventory for Public At-Grade Crossings (Report No. DOT-TSC-FRA-77-10). United States. Department of Transportation. Federal Railroad Administration. https://rosap.ntl.bts.gov/view/dot/10786
Hitz, John S.. Summary Statistics of the National Railroad-Highway Crossing Inventory for Public At-Grade Crossings. Report no. DOT-TSC-FRA-77-10. United States. Department of Transportation. Federal Railroad Administration, 1977. https://rosap.ntl.bts.gov/view/dot/10786.
Hitz, John S. Summary Statistics of the National Railroad-Highway Crossing Inventory for Public At-Grade Crossings. United States. Department of Transportation. Federal Railroad Administration, 1977, Report no. DOT-TSC-FRA-77-10, ROSA P. https://rosap.ntl.bts.gov/view/dot/10786.
In response to the Federal Railroad Safety Act of 1970, a joint government/industry effort to compile a national inventory of railroad-highway crossings was initiated in 1972 and completed in 1976. The inventory contains data on the physical and operational characteristics of all 402,000 railroad-highway crossings in the United States of which approximately 219,000 are public at-grade, 142,000 are private, 37,500 are public grade separated and 3,500 are pedestrian. This report presents comprehensive statistical summaries of the characteristics for all public at-grade crossings reported in the inventory as of May 1978. This information will be useful at the Federal, state and local levels for determining effective allocation of crossing improvement funds and developing R&D, legislative, information and education programs aimed at improving safety at crossings.
Hitz, J. S. (1977). Summary Statistics of the National Railroad-Highway Crossing Inventory for Public At-Grade Crossings (Report No. DOT-TSC-FRA-77-10). United States. Department of Transportation. Federal Railroad Administration. https://rosap.ntl.bts.gov/view/dot/10786
Hitz, John S.. Summary Statistics of the National Railroad-Highway Crossing Inventory for Public At-Grade Crossings. Report no. DOT-TSC-FRA-77-10. United States. Department of Transportation. Federal Railroad Administration, 1977. https://rosap.ntl.bts.gov/view/dot/10786.
Hitz, John S. Summary Statistics of the National Railroad-Highway Crossing Inventory for Public At-Grade Crossings. United States. Department of Transportation. Federal Railroad Administration, 1977, Report no. DOT-TSC-FRA-77-10, ROSA P. https://rosap.ntl.bts.gov/view/dot/10786.
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ensure public access to scientific information.
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