Services
Traffic Signal Warrants Analysis
As Project Engineer, Mr. Pernaw’s responsible for conducting several Signal Warrants Studies and Traffic Impact & Site Access Studies that justify the installation of traffic signal control at major intersections and access drives to commercial development projects. Partial list of intersections studied:
- NH28/Ashleigh Drive – Derry, New Hampshire
- US4/Whitney Road/Shoe String Road – Concord, New Hampshire
- NH33/Winnicut Road – Stratham, New Hampshire
- NH28/Taylor Street – Salem, New Hampshire
- NH104/Hemlock Drive – Meredith, New Hampshire
- US3 & NH28/Red Coat Lane – Manchester, New Hampshire
Intersection Operations
As Project Engineer for numerous Traffic Impact & Site Access Studies and various Corridor Studies, Mr. Pernaw utilized the technical evaluation of Design Hour Volumes to determine the proper geometric design features of uncontrolled, STOP sign and YIELD sign controlled intersections. Specified and designed various auxiliary turn lane arrangements, approach lane configurations, evaluated corner sight distances and stopping sight distances, and selected appropriate traffic control devices for these locations based upon Manual on Uniform Traffic Control Devices criteria.
Intersection/Highway Analysis
Performing impact studies, corridor studies, and safety evaluations required extensive use of the Highway Capacity Manual and Synchro software packages, as well as in-house proprietary programs, to identify existing and future deficiencies and to test alternative solutions. Mr. Pernaw has utilized SimTraffic computer simulation model for analyzing complex study areas, and to evaluate alternative forms of traffic mitigation.
Technical Research
Mr. Pernaw served as a committee member for Institute of Transportation Engineers (ITE) Committee 4A-22, Guidelines for Left-Turn Lanes. The committee investigated the need for special treatment for left-turn movements at unsignalized and signalized intersections. His Master’s Report included conducting research and establishing the relationship between trip generation and parking accumulation.
