Lane changing increases rear-end crash risk, especially in congested traffic.
Road crashes are a big problem in transportation. A new study looked at how likely rear-end crashes are when drivers change lanes. They used a lot of real driving data from German freeways. The study found that when drivers change lanes, the risk of rear-end crashes goes up, especially when traffic is busy. Also, if drivers slow down suddenly, the risk of crashes increases. This information can help predict crashes in real-time and make traffic safer.