Interchange Analysis Checklist – ICE (See
Chapter 10, Appendix K
 for sample reports)

Basic informational elements usually necessary or helpful to complete
ICE Stage 1
 include:
  • Location, Context, Roadway Functional Classification, and Project Description
  • Traffic Data (AADT, DHV, vehicle classification, percent trucks)
  • Basic Roadway Characteristics (geometric elements, existing traffic control devices, pedestrian or bicycle features, unique conditions, or constraints, etc.) obtained from roadway inventory or online mapping.
  • Pedestrian and bicycle information, such as activity, volumes, generators, etc. (when available)
  • Existing Safety Performance
    • Long‐term (minimum 5 years) crash history summary and diagram for intersection(s) under study
    • If available, findings and recommendations from a previously completed Road Safety Audit or other expressed safety concerns about the location(s), such as feedback from the local maintenance office or the public.
    • Connection to the emphasis areas, goals or strategies included in the latest Texas SHSP https://www.texasshsp.com/. Specifically, describe how the project addresses the Serious Crash Type – Intersection Safety emphasis area.
Elements required for
Stage 2
 (for each of the short-listed Stage 1 alternatives) include:
  • Prepare high‐level conceptual design/sketch for each short-listed alternative
    • Summarize and compare any right‐of‐ way impacts and extent/significance of land acquisition
    • Include the essential elements or treatments for pedestrians and bicyclists
    • Critical/turning movement analysis of design vehicle and check vehicle(s) (i.e., oversize permit load scenarios)
  • Identify significant environmental impacts (wetlands, parks, historic, etc.)
  • Prepare capital cost estimate and summarize lifecycle maintenance and operation costs.
  • Perform operational analysis to determine intersection delay and V/C ratio; and therefore, operational performance.
  • Perform safety analysis to determine expected reduction in number of crashes, with an emphasis on the difference in severe crashes (i.e., those resulting in fatalities or injuries)
  • Identify level of support from different stakeholders, including TxDOT, local government and other key stakeholders.