At ZIE, we are dedicated to delivering comprehensive and forward-thinking Transportation Engineering and Planning solutions that prioritize efficiency, safety, sustainability, and inclusivity. Our goal is to create transportation systems that not only meet today’s demands but also adapt to future needs — supporting vibrant communities and driving economic development.

We bring together a multidisciplinary team of engineers, planners, and analysts to develop data-driven and innovative solutions tailored to our clients’ unique challenges. Whether it’s enhancing roadway safety, improving freight mobility, or designing pedestrian-friendly corridors, we provide end-to-end services that make a lasting impact.

Transportation Engineering

We design and optimize transportation infrastructure to ensure seamless mobility and safety. Our engineering solutions are based on a deep understanding of traffic behavior, roadway design standards, and environmental considerations.

Transportation Safety

Safety is at the heart of everything we do. From crash analysis to intersection improvements and traffic calming measures, we apply proven methods to reduce accidents and improve overall road safety for all users.

Geometric Design of Streets and Highways

Our experts develop functional and context-sensitive designs for urban and rural roadways, including intersections, ramps, roundabouts, and freeway alignments that comply with national and local design standards.

Intermodal Transportation Systems

We plan and integrate multiple modes of transportation—road, rail, air, and sea—into a unified network to enhance mobility, reduce congestion, and improve connectivity across regions.

Urban Planning and Mobility

We support cities in developing sustainable urban transportation plans that align with land use, environmental goals, and economic development. Our services include transit planning, smart growth strategies, and mobility assessments.

Access Management and Circulation Studies

Optimizing access to and from properties, roadways, and developments is crucial for safety and efficiency. We conduct thorough studies to balance access needs with traffic flow and safety considerations.

Intelligent Transportation Systems (ITS)

Harnessing technology to improve traffic operations and traveler experience, we plan and implement ITS solutions such as adaptive traffic signals, traveler information systems, and incident detection tools.

Freight Planning and Mobility

ZIE offers expert freight analysis and planning services to support logistics and goods movement. We help clients enhance freight corridors, manage truck traffic, and plan for last-mile delivery challenges.

Traffic Impact Studies

We conduct detailed analyses to assess how new developments or infrastructure projects will affect transportation networks. Our studies support permitting, zoning, and funding decisions.

Vision Zero and Complete Street Studies

We align our work with Vision Zero goals by designing streets that eliminate traffic fatalities and serious injuries. Our Complete Streets approach prioritizes safe access for all users—pedestrians, bicyclists, motorists, and transit riders alike.

Bike and Pedestrian Planning

Encouraging active transportation is essential to healthy, livable communities. We design walkable and bike-friendly infrastructure that ensures safety, accessibility, and connectivity for non-motorized users.

Specialized Transportation Studies

In addition to core services, we conduct a wide range of tailored studies including corridor studies, parking demand analyses, travel demand modeling, and transportation policy reviews.