Isett staff includes a Professional Traffic Operations Engineer© (PTOE) and offers a full range of transportation services which include traffic impact studies; design of traffic signals, school zones, roadways, traffic calming, bridges, and culverts; master planning; right-of-way conveyance coordination; railroad crossings; existing pavement analysis; construction management; PennDOT Highway Occupancy Permitting (HOP); and Americans with Disabilities Act (ADA) ramps.
Examples of clients include the Pennsylvania Department of Transportation (PennDOT), various municipalities, developers, and private businesses and industry.

- Traffic impact studies
- Roadway design
- ADA ramp design
- Detour plans
- Maintenance and protection of traffic
- PennDOT Highway Occupancy Permits
- Railroad crossing permitting
- Right-of-way dedication plans
- Signage analysis
- Traffic circulation studies
- Traffic signal design
- Trip generation studies

Sauerkraut Lane Extension in Lower Macungie Township

Grand Street Extension in Hamburg, Berks County, PA

The Waterfront in Allentown

Liberty at Mill Creek

Walkability Improvements for Hellertown Residents

Lumber Street, Macungie Borough, PA
