The number of car crashes in California has decreased by over 50 per cent, saving tax payers $40million dollars a day.

The sharp decrease in accidents follows the state's 'shelter in place' order to limit the coronavirus spread, according to a new survey.

The UC Davis research concluded the lack of crashes was a result of 'statistically significant' changes in traffic volume.

Coronavirus stay-at-home orders that went into effect on March 20 have reduced vehicle collisions on California roadways by roughly half, according to a UC Davis survey that is the first to estimate the impact of the extraordinary health orders on traffic.