Hacker News Reader

> Because 99.9999% of drivers are human and have no issues seeing the concrete barriers and not hitting them head on at full speed.

In this particular case, a human driver did crash head-on into the barrier somewhat recently.

View on HN

According to https://dot.ca.gov/programs/traffic-operations/census/traffi..., ~125,000 cars drive through that area per day (scroll to "JCT. RTE. 85", divide by 2). According to the report, the previous collision was 2 months earlier, so ~7.5Million cars passed through there. 99.9999% doesn't seem that far off.

Reply on news.ycombinator.com