Traffic

engineering

Reducing congestion, improving safety, and optimizing transportation systems through data-driven traffic engineering solutions built for growing communities.

overview

Solving Traffic Challenges Before They Become Bigger Problems

As communities grow, traffic volumes increase, travel times lengthen, and safety concerns become more complex. Without proactive planning, congestion, crashes, and inefficient signal operations can strain infrastructure and frustrate residents.


HLR provides comprehensive traffic engineering services that help communities improve mobility, increase safety, and prepare transportation systems for future demand. Our certified traffic professionals guide projects from analysis through design, implementation, and ongoing optimization.

analysis

Understanding Traffic Conditions Through Data and Modeling

Reliable traffic decisions begin with accurate data, proven methodologies, and objective analysis.


  • Traffic impact studies
  • Traffic counts and turning movement studies
  • Capacity and delay analysis
  • Corridor and intersection evaluations
  • Synchro, HCS, and SIDRA modeling

SIGNALS

Designing Traffic Signals That Improve Flow and Safety

Modern signal systems require thoughtful design, current technology, and long-term operational planning.


  • New traffic signal design
  • Signal modernization plans
  • Vehicle detection systems
  • Pedestrian accommodations
  • ITS / adaptive signal system integration

operations

Optimizing Signal Timing for Better Traffic Movement

Even well-designed systems underperform without proper timing and coordination.


  • Signal coordination and timing (SCAT)
  • Re-optimization of aging systems
  • Temporary construction timing plans
  • Monitoring and field adjustments
  • Complaint response support

specialty

Managing Complex Traffic Systems Through Real-Time Monitoring and Operations Support

Operating signal networks across multiple intersections requires more than design expertise — it demands continuous monitoring, responsive adjustments, and system-wide strategy.


HLR supports municipal, county, and state agencies with advanced traffic signal operations and maintenance programs that keep systems functioning efficiently.


  • Centracs, TACTICS, Aries, and TransSuite platforms
  • Signal inventory and asset management
  • Maintenance program development
  • Field troubleshooting and diagnostics
  • Performance monitoring and optimization

development

Supporting Growth With Practical Traffic Review Services

New developments can significantly impact surrounding transportation systems. HLR helps agencies and communities review plans, studies, and applications quickly and accurately.

  • Development traffic review
  • Access and circulation analysis
  • Quality control of outside studies
  • Mitigation recommendations
  • Cost-sharing improvement analysis

Experience That Keeps Communities Moving

PROVEN PERFORMANCE

Certified Expertise

Licensed traffic engineers with PTOE and IMSA credentials.

Extensive Project Experience

Broad history of traffic studies, timing plans, and signal designs.

Advanced Tools

Latest traffic simulation and monitoring software platforms.

Practical Solutions

Recommendations aligned with budgets, operations, and long-term needs.

Trusted by Municipal Leaders Across Illinois

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"Bringing them on as our traffic signal consultant was the true beginning of the long-standing partnership we’ve had with HLR."

"HLR has maintained our traffic signal program for decades now, as well as done so many other projects with us along the way.”

Aaron Neal

Public Works Director, City of Elgin

get started

Ready to Improve Traffic Flow and Safety?

Partner with HLR for traffic engineering solutions that reduce congestion, improve operations, and strengthen your transportation network.