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PHILADELPHIA, SCHUYLKILL EXPRESSWAY.
| 题名： | PHILADELPHIA, SCHUYLKILL EXPRESSWAY. |
| 作者： | Eichorn-W; Morasco-LM |
| 关键词： | CONFERENCES-; RECONSTRUCTION-; CASE-STUDIES; EXPRESSWAYS-; BRIDGE-MAINTENANCE; PAVEMENT-MAINTENANCE; TRAFFIC-MANAGEMENT; ORIGIN-DESTINATION-STUDIES; PLANNING-; MITIGATION-MEASURES; TRAFFIC-SURVEILLANCE; PUBLIC-RELATIONS; INFORMATION-DISSEMINATION |
| 摘要： | Designed as one of a network of expressways ringing the metropolitan Philadelphia area, Interstate 76, or the Schuylkill Expressway, as it is more commonly known, was fully opened to traffic in 1961, 10 years after construction began. In the ensuing 25 years, I-76 came to stand virtually alone, as community opposition halted construction of almost all of the remaining proposed highways. For most of its 21-mile length from the Pennsylvania Turnpike in Montgomery County to the Walt Whitman Bridge in Philadelphia, I-76 is a four-lane, limited access highway, with some short stretches of six or eight lanes. The highway carries between 80,000 to 143,000 vehicles daily. Much of the highway passes through difficult terrain composed of steep rock cuts, high embankments, and wide, deep gullies. These restrictions, along with other constraints imposed by an adjacent railroad, parkland, and residential properties, are responsible for the variation in width and lack of progress by the Pennsylvania Department of Transportation to widen the highway to provide additional expressway capacity. In about the mid 1970s, it became obvious that both the expressway pavement and bridges in the 17.7-mile section between the Turnpike and University Avenue in Philadelphia were rapidly deteriorating, making any further interim remedial action ineffective. Of the 50 bridges within these limits, 38 required redecking, including the 1500-foot Pencoyd Viaduct, which crosses a Conrail freight line and the Schuylkill River. Because of the highway's importance and urgent need for rehabilitation, Secretary of Transportation Larson committed the department to reconstructing the expressway as quickly as possible with the least amount of disruption to motorists. This paper discusses that reconstruction project under the following headings: keeping traffic moving; origin and destination survey; the strategies; mitigation measures; traffic monitoring; and informing the public. |
| 总页数： | Transportation Research Board Special Report. 1987. (212) pp88-95 (1 Fig.) |
| 报告类型： | 科技报告 |
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