Incorporating the costs of access management to the prioritization of transportation corridors vulnerable to land development

A transportation agency has elected to prioritize the needs to protect corridors and corridor sections that are most vulnerable to land development. An existing methodology developed at the University of Virginia has begun to use parcel assessments, parks and schools, conservation easements, population data, employment data, and associated modeling and analysis to develop a priority score useful to screen among vulnerable corridor sections. This paper contributes data collection and analysis of the potential costs of access management and corridor protection along thirty-mile corridors. The costs are represented by (i) parcel values adjacent to half-mile corridor sections, and (ii) driveways, intersections, and other access points in the corridor sections. We discuss the demonstration of the extended methodology in a Virginia locality using a geographic information system. The extended methodology enables localities and transportation planners to address needs for corridor protection along many miles of corridor in a 60,000 mile statewide transportation system.