Sector: Roads & Tunnels
Efficient and Resilient Transportation Systems
Tunnel vision for safer & smarter roads
Effectively address critical performance and safety challenges throughout the lifecycle of your infrastructure project when you collaborate with RWDI. With over 50 years of expertise, we provide essential insights into air quality, ventilation, and environmental compliance, ensuring that transportation systems are designed with safety and sustainability in mind. By utilizing advanced modeling techniques and extensive monitoring capabilities, RWDI helps clients minimize environmental impacts, enhance public health, and reduce long-term maintenance costs, ultimately leading to safer and more efficient road and tunnel systems.
Addressing roads & tunnels challenges
The construction of roads and tunnels involves a multitude of challenges, from complex technical problems to regulatory hurdles and environmental concerns. Managing project budgets and timelines is difficult due to unforeseen complications like unpredictable geotechnical conditions, weather disruptions, and managing traffic in dense urban areas. Safety concerns for workers and future users, along with the need for innovative, sustainable design solutions, can further complicate large-scale infrastructure projects.
The right insights at the right time
From design to operations, we have the right experience and expertise to solve any road and tunnel design. Explore services for every stage of the road lifecycle.
Services
- Environmental assessment
- Noise & vibration
- Air quality
- Greenhouse gas (GHG) emissions
- Climate & resiliency preparation
How we help
We collaborate and support your vision with technical expertise across every climate and performance engineering discipline. Create more resilient roads and tunnels that exist in harmony with their environment and community.
Minimize the environmental impact of your transportation project, ensuring compliance with regulations and promoting community health with the power of comprehensive environmental analysis. We provide in-depth assessments of environmental factors such as air quality, noise, and greenhouse gas emissions. By addressing these factors early in the planning process, you can avoid costly modifications later on and enhance public acceptance of your project.
Make informed design decisions, ultimately leading to safer and more efficient infrastructure with our advanced modeling. Utilizing cutting-edge tools like computational fluid dynamics (CFD) modeling and wind tunnel testing, we offer precise predictions of performance issues related to ventilation, fire management, and pollutant dispersion. The ability to visualize and test various scenarios helps mitigate risks and enhances your project’s reliability.
Take a proactive approach to road projects, ensuring you not only safeguard lives but also minimize liability and long-term costs associated with safety incidents. Our expertise in tunnel and road design includes a focus on safety measures that protect both workers and the public. By identifying potential hazards and implementing solutions during the design phase, you can reduce the likelihood of accidents and operational disruptions.
Reduce long-term maintenance costs and optimize capital expenditures through effective environmental management and advanced engineering solutions. By addressing issues like snow drift and fog early in the design, clients can save money on future repairs and operational expenses. This focus on cost efficiency translates to better budget management and improved project viability.
Holistic engineering solutions
Road and tunnel design and operational challenges are complex. Our holistic suite of services offers climate responsive design and human-centric solutions that maximize performance and minimize environmental impact.
Construction support (noise, dust)
We understand the critical importance of managing noise and dust emissions during road and tunnel construction. Our expert team develops comprehensive strategies tailored to your project’s unique challenges, ensuring regulatory compliance and minimizing community impact. We employ advanced techniques, from customized noise barriers to efficient dust suppression systems, that balance construction progress with environmental responsibility. By partnering with us, you’re not only mitigating potential disruptions but also fostering positive relationships with stakeholders, ultimately contributing to your project’s smooth execution and success.
Air quality and exhaust modeling
Our sophisticated air quality and exhaust modeling capabilities provide you with invaluable and timely insights for your road and tunnel projects. We utilize state-of-the-art simulation technologies to accurately predict vehicle emissions and exhaust dispersion patterns. This data-driven approach enables you to design optimal ventilation systems and implement effective pollution control measures. By leveraging our expertise, you can ensure your project not only meets but exceeds air quality standards, safeguarding public health and demonstrating your commitment to environmental stewardship. Our modeling services empower you to make informed decisions that enhance both the efficiency and sustainability of your infrastructure.
Ongoing monitoring of air quality, noise, & more
Our ongoing monitoring solutions offer you a continuous, real-time assessment of your project’s environmental impact. We deploy cutting-edge sensors and monitoring equipment to track air quality and noise levels throughout your road or tunnel’s lifecycle. Our advanced data analytics and user-friendly interfaces transform complex environmental data into clear, actionable insights. This empowers you to swiftly identify and address potential issues, maintain regulatory compliance, and demonstrate your proactive approach to environmental management. Invest in a solution that not only protects the environment but also enhances your project’s reputation and operational efficiency.
Doha Industrial Area
An environmental noise and vibration assessment for a significant infrastructure upgrade
Dublin Port Tunnel
Reviewing the curtailment of 24-hour tunnel boring due to groundborne noise and vibration effects in overlying residences
Highway 407 East
Air quality, noise and vibration assessments for a 46-kilometer highway expansion
FAQs about our road & tunnel services
Still have questions? Contact us.
Yes, we specialize in helping road and tunnel projects meet strict environmental regulations. Our team conducts air quality and noise modeling, vibration assessments, and ecological impact studies to identify risks early and implement effective mitigation strategies. Whether it’s controlling emissions from traffic and construction, reducing community noise impacts, or protecting sensitive habitats during alignment selection or tunneling, we provide the technical expertise and regulatory insight to keep your project compliant and environmentally responsible.
We lead environmental assessments and permitting for projects ranging from surface roads to deep-bore tunnels. Our services include air quality and emissions modeling, dust and odor control, noise and vibration studies, and stormwater management, all aligned with applicable regulations. We work closely with project teams and regulators to streamline approvals and avoid costly delays.
Yes, we assess climate risks such as flooding, extreme heat, precipitation events, and wind loads, then incorporate those insights into design strategies. From tunnel portals to elevated interchanges, we help you build resilient infrastructure that can withstand future climate conditions while protecting public safety and long-term investment.
We do. We support new highways and tunnels from planning through commissioning, and we’re equally experienced in assessing and upgrading aging assets. Our team provides structural evaluations, environmental permitting, and systems performance analysis to improve safety, compliance, and operational efficiency.
We conduct detailed assessments of vehicle emissions, construction impacts, and operational noise and vibration. Our team recommends tailored mitigation strategies—such as noise barriers, filtration systems, and ventilation design—to minimize health and nuisance impacts for surrounding communities and meet environmental standards.