Vision Zero
starts with
safe roads
A safe road infrastructure is at the basis of meeting Vision Zero goals: no fatalities by 2050 and a 50% reduction by 2030.
ROADSCOR (Road Optimization Analysis for Design Safety by COnflict Review) supports the safety of vulnerable road users in a safe system approach by optimizing road design without relying on traffic crash and/or near-miss data.
Roadscor complements current safety assessment methods by providing insight in all high-risk traffic conflicts in a well-structured and reproducible way.
It allows for quantification of the safety by combining traffic modeling with a patented methodology capable of detecting even unknown-unsafe scenarios in line with the international safety standard ISO21448 (SOTIF).
Roadscor empowers traffic engineers with objective information to optimize road designs and evaluate the impact of potential safety measures, stimulating safe active mobility.
The Roadscor methodology
Safe road design is one of the fundamental elements contributing to reducing road crashes. Designing safe roads depends on the availability of the right data.
Roadscor is an innovative, data-driven safety evaluation tool to assess the likelihood and severity of crashes in critical parts of the road, such as intersections.
It supports traffic engineers in assessing the effects of (behavioral) measures and (infrastructure) modifications.
Roadscor is unique in being able to identify all scenarios, including the ones that haven’t happened yet. This functionality is enabled by Roadscor bringing automotive technology developed for identifying unknown-unsafe scenarios to traffic engineering. The proprietary and patented methodology systematically and automatically generates all possible conflicts for a specific road section based on its layout, also revealing unknown (both safe and unsafe) scenarios.
Any tool is as good as the data on which it is based, with Roadscor being the only tool also considering the unknown scenarios. This makes it more complete, accurate and less time consuming.
A Roadscor project
A Roadscor project begins with the traffic model of the intersection, including typical routes and road user behavior. Next, all possible conflicts considering road users’ speeds and turning radii, are simulated. The software considers all physically possible routes – even the ones that are not likely or allowed.
Where a Roadscor analysis can be conducted for any road section, it will most typically be conducted for intersections in an urban area initially.
The workflow is completed by weighing conflicts against movements to determine the Roadscor score. Based on this a traffic engineer can propose measures and adjustments, the effects of which on safety can be determined before implementation through a new iteration of calculating the Roadscor.
The impact of road crashes
By providing easily accessible, objective, and affordable safety information, Roadscor enables traffic engineers to design safer roads.
Connecting to Roadscor
Roadscor is an innovative approach which is developed in collaboration with leading enterprises in simulation, traffic engineering and urban design.
Royal HaskoningDHV is an independent consultancy & engineering company that recognized the potential of Roadscor’s conflict analysis approach to create a positive impact on people and planet. Backed by the expertise of over 6,000 colleagues, the company helps road authorities understand the deeper causes of traffic accidents and build better bases of data, to seeking new infrastructure designs, implementing strategies for a sustainable and safe traffic & transport system, leveraging innovative technologies and influencing road user behavior.
Siemens is a leading provider of simulation software. Simcenter Prescan enables the development and virtual verification for Advanced Driver Assistance Systems (ADAS) and autonomous vehicles. Siemens contributes with the knowledge, expertise and experience as the original developer of the proprietary and patented Critical Scenario Creation methodology which is used for the conflict analysis between different road users.
Aimsun is an international leader in digital mobility solutions for transportation authorities, highway agencies, public transit operators and consultancies. Aimsun’s simulation and predictive data analytics help customers understand transportation network performance, to predict its future evolution, and to support decision making. Aimsun’s leading pedestrian and bicycle models are key input for Roadscor’s conflict analysis.
About Roadscor
Roadscor is started by Robbert Lohmann, who recognized the potential to apply the automotive technology and methodology developed by Siemens to assess the safety of road infrastructure for any type of road user, including vulnerable road users.
Roadscor holds an exclusive license from Siemens to improve urban safety by supporting traffic engineers to create safe roads. The added value relies on the combination of Roadscor as innovative safety evaluation tool and the knowledge, expertise and experience of traffic engineers.