Martin Wachs, distinguished professor emeritus of urban planning, spoke to the San Diego news site inewsource about Senate Bill 1, a gas tax  passed in 2017 to improve the condition of California roads. Some communities are unsatisfied with the pace of road repairs, the article noted. But Wachs called the law “a short-term fix that was absolutely necessary.” In the future, he added, different solutions will be needed as fuel mileage rates increase and more people drive electric cars that don’t use gas — two trends that will cut into gas-tax revenue. “We’ll be selling less gasoline in relation to the driving that we do as years go by,” Wachs said.