TJW Engineering

TJW Engineering delivers data-driven traffic engineering solutions that enhance mobility, support community growth, and address operational needs. The practice works with public agencies and developers to design compliant, high-performing transportation systems that serve motorists, pedestrians, cyclists, and transit users.

• Traffic Signal Design & Operations

  Provides traffic signal design, system upgrades, communications, operational analysis, and signal timing optimization to modernize intersections.

• Active Transportation Analysis & Design

  Provides active transportation analysis and design services to support bicycle and pedestrian improvements on existing and planned roadways.

• Safety & Collision Analysis

  Conducts detailed collision and safety studies to identify trends, evaluate operational performance, and develop engineering-based recommendations.

• Temporary Traffic Control (TTC)

  Prepares clear, practical temporary traffic control plans that minimize disruption while maintaining access and circulation.

• Alignment Studies & Conceptual Design

  Develops alignment studies and conceptual designs that support stakeholder coordination and informed decision-making.

• Signing & Striping Design

  Delivers clear, MUTCD-compliant signing and striping plans to promote predictable travel and support multimodal operations.

• Intersection Warrant Analysis

  Evaluates traffic volumes, delay, and operational characteristics to determine whether signals, multi-way stop control, or roundabouts are warranted under MUTCD criteria.

• Roundabout Design & Analysis

  Provides roundabout design and independent review services, emphasizing appropriate geometry, speed management, and multimodal accommodation.

• Plan Check Services

  Supports public agencies and project teams by providing independent traffic engineering plan review services to verify consistency with standards.

Strategic transportation planning that supports informed decision-making and integrated mobility solutions.

• Multimodal Mobility Studies

  Provides comprehensive studies analyzing the interactions between vehicles, pedestrians, and bicycles.

• VMT/LOS Analysis

  Conducts vehicle miles traveled and level of service analyses for environmental and operational compliance.

• Corridor Planning

  Evaluates corridor-level traffic operations and forecasts travel demand to develop data-driven mobility solutions.

• CEQA/NEPA-Compliant Assessments

  Prepares compliant transportation and circulation assessments for environmental reviews.

• Travel Demand Forecasting

  Uses modeling tools to forecast traffic volumes and project future transportation needs.

Technically rigorous lighting design that balances performance, efficiency, and context-sensitive application.

• Roadway & Street Lighting Design

  Designs street and roadway lighting for streets, bikeways, and pedestrian facilities adapted to modern standards.

• Photometric Analysis

  Utilizes advanced lighting modeling to verify compliance with illuminating engineering standards.

• Nighttime Safety Analysis

  Integrates nighttime safety analysis and multidisciplinary engineering to deliver high-performance lighting systems.

Trusted technical support and staff extension services that help agencies manage transportation needs and workloads.

• Staff Extension Services

  Provides temporary or ongoing traffic engineering support to help cities and counties manage workloads.

• Traffic Engineering Plan Review

  Independent review of proposed third-party designs to ensure compliance with local and state standards.

• Technical Evaluations

  Performs operational evaluations, study reviews, and permit support on behalf of municipal agencies.