I follow a couple news stringers and the devastation and lives lost from wrong way drivers is ridiculous, especially in California. There has to be a safe,effective, inexpensive way to stop this from happening. Some sort of device to stop these people. Police officers sometimes risk their lives and drive into these wrong way drivers if you can believe it. One died in Florida a month ago trying to stop a wrong way driver.
These wrong way accidents almost always result in death.
https://youtu.be/gPxW5g-qKek