Southwest Traffic Engineering, LLC
Focused Traffic Engineering Design and Transportation Planning Services
About the firm
Southwest Traffic Engineering, LLC (SWTE) is an Arizona-based traffic engineering practice founded in 2003, providing comprehensive traffic engineering design and transportation planning/analysis services. SWTE's professional engineers hold registrations in Arizona, New Mexico, Colorado, Nevada, and Utah, focusing exclusively on traffic engineering analysis and design. SWTE serves both private and public clients throughout Arizona, offering multiple internal engineering teams capable of working concurrently on traffic engineering tasks within a single project.
- Established
- 2003
- Firm type
- Transportation Engineering · Civil Engineering · Design-Build
People
Andrew SmigielskiFounder
Capabilities
Traffic Engineering Design
Service websiteDelivers detailed engineering layouts and plans for physical roadway infrastructure. This specialized practice covers signals, lighting, signing, and intelligent transportation systems designed to optimize traffic flow and safety.
- Traffic Signal Systems
Drafts comprehensive electrical and signal timing layouts for urban intersections.
- Roadway Signing and Pavement Marking
Develops precise signing and striping plans to direct and control road users.
- Roadway and Path Lighting
Designs illumination systems for corridors and pedestrian walkways to enhance nighttime visibility.
- Traffic Control and Calming
Formulates temporary traffic control plans and permanent calming measures to manage vehicle speeds and work zone safety.
- Intelligent Transportation Systems (ITS)
Integrates communication and detection technologies to manage traffic flow dynamically.
- Modern Roundabouts
Engineers circular intersection geometries that reduce conflict points and improve safety.
Transportation Planning and Analysis
Service websiteProvides rigorous evaluations and modeling to assess traffic impacts and guide infrastructure development. Studies analyze pedestrian patterns, corridor efficiency, safety metrics, and transit planning.
- Traffic Impact Analyses
Evaluates the developmental impact of new projects on existing transportation networks.
- Safety and Collision Analyses
Identifies high-risk conflict areas and develops countermeasures to improve overall roadway safety.
- Transportation Modeling
Utilizes specialized software to simulate future travel demand and evaluate network performance.
- Corridor and Access Management Studies
Assesses highway segments to optimize access points, turn lanes, and median configurations.
- Multimodal and Transit Planning
Evaluates pedestrian circulation, bicycle routing, and transit systems to support alternative modes of transport.
Alternative Delivery Methods
Service websiteFacilitates collaborative project execution through modern procurement frameworks. Experience includes design-build, construction management at risk, and job order contracting.
- Design-Build Integration
Participates as the lead traffic engineering partner in unified design-build delivery teams.
- Construction Manager at Risk (CMAR)
Collaborates with construction managers early in the design phase to optimize constructability.
- Job Order Contracting (JOC)
Supports rapid-response municipal and state projects under pre-negotiated umbrella agreements.
Industries
Transportation · Government
Projects
No projects listed yet.