Traffic Engineering

Traffic Engineering Services

Traffic Studies That Guide Smart Decisions

Analyze traffic patterns that improve safety, flow, and operations

Traffic patterns can affect safety, congestion, and overall roadway efficiency. SEH provides data-driven studies that help communities and agencies identify problem areas, anticipate future impacts, and implement solutions that keep vehicles, pedestrians, and bicyclists moving safely and efficiently.

Our recommendations and designs are grounded in real-world conditions, delivering actionable results that support safer, smoother traffic operations.

Traffic Study Solutions 

• Traffic counts and data collection
• Intersection and corridor analysis
• Vehicle, pedestrian, and bicycle mobility studies
• Level of service (LOS) evaluations
• Impact studies for development or roadway change
• Signal and operational analysis

Smarter Signalization and Safer Intersections

Optimize traffic signals to reduce delays and congestion

Traffic signals do more than control vehicles. They create predictability and improve intersection performance. Poorly timed or outdated signals can cause backups, delays, and increase the likelihood of crashes.

Our team implements and optimizes signals that respond to real traffic conditions. From timing adjustments to corridor-wide coordination, we help improve intersection performance and deliver traffic solutions that make roadways more reliable and easier to navigate.

Signalization Solutions

• Traffic signal design and layout (i.e., Emergency Vehicle Preemption (EVP))
• Signal timing and coordination plan development and field implementation
• Intersection operational analysis
• Pedestrian and bicycle signal accommodations
• Compliance reviews with local, state, and federal standards
• Special event signal timings

Clear Signage and Striping for All Streets

Enhance visibility and improve roadway communication

Well-marked lanes and clear signage make it easier for everyone to navigate streets, parking areas, and facilities.

Our advanced pavement marking and sign layout plans help prevent costly rework caused by improper placement or fading. With strategic signage and striping solutions, your roadways communicate clearly, and support smooth, reliable travel.

Signage and Striping Solutions

• Roadway and lane markings
• Regulatory, warning, and guide signage design
• Pavement marking plans and layout
• Traffic control sign placement and visibility reviews
• Pedestrian and bicycle wayfinding signs
• Compliance reviews with Manual on Uniform Traffic Control Devices (MUTCD) and ADA standards
• Maintenance planning and retrofit recommendations

Traffic Safety Solutions That Protect Communities

Identify risks to keep everyone moving safely

Traffic safety isn’t one-size-fits-all. Everyone navigates streets differently; drivers, walkers, and cyclists face unique safety challenges at every roadway and intersection.

We evaluate conditions, analyze patterns, and develop traffic safety strategies tailored to your community needs using a Safe System Approach that prioritizes safer speeds, safer road design, and protection for all road users.  Through careful analysis and targeted interventions, we address safety concerns before they escalate, strengthening trust in your transportation network.

Traffic Safety Solutions

• Crash analysis and risk assessment
• Traffic calming strategies
• Intersection safety improvements
• Community safety planning and education (i.e., Safety Action Plans)
• Alternative Intersection Analysis (i.e., Roundabouts, R-CUTs, Diverging Diamond Interchanges)
• Road safety audits
• Safe routes to school plans and designs

Innovative Multimodal Safety Design

Implement solutions that make navigation easier

Streets support more than vehicles. People walking, biking, and using transit share the same corridors, and without thoughtful design, interactions between modes can create confusion and delay.

SEH evaluates roadway conditions and travel patterns to develop improvements that strengthen connectivity and clarify movement. Our multimodal designs enhance accessibility and create transportation networks that function cohesively across modes.

Multimodal Safety Design Solutions

• Pedestrian and bicycle safety analysis
• Complete streets planning and design
• Sidewalk, crosswalk, and bike facility design
• ADA accessibility and compliance reviews
• Integration with transit and multimodal networks
• Pedestrian beacon design (i.e., RRFB, HAWK)
• Railroad crossing safety enhancements

Traffic Control and Staging for Safer Work Zones

Keep construction zones safe while maintaining traffic flow

Construction can impact businesses, residents, and commuters when traffic patterns change.

SEH creates traffic control solutions that guide road users safely through work zones while supporting project efficiency. We balance construction needs with community expectations to keep traffic moving and work progressing.

Traffic Control and Staging Solutions

• Work zone traffic control planning
• Staging and detour design
• Lane closure and phasing plans
• Signage, barriers, and markings for construction zones
• Pedestrian and cyclist accommodations