How to Use Chainage to Identify and Understand Road Safety Risk.

This tutorial demonstrates how to use Chainage graphs to monitor the effectiveness of low-cost road safety treatments in modifying driver behaviour.

This article outlines the different steps, tools, and features you can use to identify road safety risk and interpret chainage graphs. For this example, we will use our Osborne Park Urban Road Safety usecase.

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1. Finding Locations of Interest

Use the search bar to quickly find a specific road or location of interest. For this usecase, we've searched for Osborne Park.

Next, select the date and time that you want to view data for. There are also advanced options as well, such as selecting specific days of the week or adding multiple date and time ranges. We've selected a date range from after the program was implemented.

2. Selecting Specific Areas or Vehicle Paths

Use the Path Analysis button to select the section of road you are interested in. In this case, we've drawn a path that runs through one of the intersections where the low-cost roundabouts were installed.

3. Interpreting Results

For this case study, we will focus on the Chainage graphs. The client hypothesised that the painted roundabouts would have an impact on driver speeds and braking. The chainage graphs allowed for better visualisation of speed data and what section of the path corresponds to the graph.

To view the full result of this case study, read the Osborne Park Urban Road Safety usecase.