NYSDOT I-87 Exit 4 Scoping and Design

CHA investigated alternatives for improved interchange access and mobility between I-87 (Adirondack Northway), the Albany International Airport and the Wolf Road commercial corridor. This $25 million project involved the development and evaluation of alternatives at a concept-level to determine feasibility, potential environmental/community impacts, benefits and costs.

The concepts included new connector roads, evaluations of key intersections for conversion to roundabouts, options for a new interchange, and options for modifications/improvements at Interchanges 4 and 5. Pedestrian and bicycle accommodations in the corridor were also an integral consideration of the alternatives. Feasible alternatives were advanced for study and preliminary design for the Environmental Impact Statement.

Traffic Engineering and Transportation Planning Services:
  • Traffic Data Collection
    • Traffic Counts
    • Origin/Destination Surveys
    • Travel Time/Delay Studies
    • Queue Studies
  • Traffic Forecasting: MPO Coordination for Regional Travel Demand Modeling
  • Capacity Analyses (Synchro/SimTraffic and HCS+)
    • Signalized Intersections
    • Arterial Segments
    • Freeway Mainline
    • Ramp Merge/Diverge/Weave
  • Traffic Simulation Modeling and Animations (VISSIM)
  • Roundabout Alternatives Analysis and Simulation
Project Services:
  • Traffic Engineering and Planning
  • Alternative Analyses
  • Survey
  • Scoping
  • Data Collection
  • Design
  • Public Participation
  • Website Development
  • Environmental Impact Statement (EIS)
  • Section 4(f) and 6(f) | Environmental
  • Hazardous Materials and Asbestos Investigations
  • Visual Impact Assessment
  • Graphic Design