Case study

Identifying Spillback

Analysing driver behaviour to identify spillback and how it affects road users.

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Background

On the M7 off-ramp at Glendenning, there is data that shows rear-to-end crashes. Engineers theorise spillback might be found on the lane connecting to the exit. This causes passing cars to brake or swerve harshly to avoid hitting cars waiting in the main lane.

Solution

By analysing car movement, users of Brakepoint could find evidence of spillback. This was done by analysing swerving and braking movements in connected vehicles.

Results

Data in Brakepoint found that there was evidence of harsh brakes and swerving towards the right. Although it wasn’t always happening, these movements were still occurring regularly. The graphs showed
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