TxDOT El Paso Innovative Intersection Evaluation

Evaluate the safety and operational performance of several types of innovative intersection designs.

Quick Facts

  • Discovered roundabouts in El Paso were over-designed and not in conformance with modern roundabout standards, impacting both operations and safety

  • Evaluated innovative intersection types include diverging diamond interchange (DDI), multilane roundabouts, and interchange with direct connectors and cloverleaf ramps

  • Developed recommendations for improvements and white papers to support the District pursue funding to implement recommendations


  • Developed recommendations to improve operations and safety at evaluated innovative intersections

  • Reduced non-compliance of required lane use and excessive speeding through the roundabouts

  • Improved pedestrian safety through additional pedestrian channelization and warning to drivers

  • Increased overall traffic operations efficiency

Our Work

  • Performed design review of seven innovative intersections

  • Used Vissim microsimulation, Synchro operations, and data analysis to evaluate delay, level of service, queue lengths, travel times, latent delay, speeds, lane utilization, gap acceptance, weave/merge/diverge capacity, yielding compliance, lane assignment compliance, and conflicts

  • Developed an overall benefit-cost ratio for each alternative

  • Investigated safety issues using TxDOT’s CRIS data and UTEP’s crash records

  • Developed white papers summarizing recommendations

Privacy Policy

We respect and are committed to protecting your privacy. As such, any personal information we collect on this website will be kept in the strictest confidence, and never released (either shared or sold) to any third party organization.

If you feel that we have misrepresented this policy in any way, please do not hesitate to contact us.