Waste Management's LNG Truck Fleet: Final Results. Alternative Fuel Truck Evaluation Project
Economic Census 1997: Pennsylvania. Transportation and Warehousing. Geographic Area Series
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Recycling and Rehabilitating Low-Volume Roads. Performance Report, SR 2015, Bradford County
Revitalization of PennDOT: A Case Study in Effective Public Management
Greater Pittsburgh International Airport, Pittsburgh, Pennsylvania. Book I. Introduction. Appendix A
Legislative Route 346, Section 6 (Traffic Route 45), Huntingdon County, Pennsylvania
Transportation Controls to Reduce Motor Vehicle Emissions in Pittsburgh, Pennsylvania