The debate over signaling and train control between the railroads and the ICC had never really been settled, just deferred as passenger deaths declined, in part due to more travelers using their automobiles for shorter commutes and an expanding and improving highway network. It ended in 1946, when one express passenger train crashed into another one that had stopped , both operated by the Chicago, Burlington & Quincy , in Naperville, Illinois . The conductor of the first train had had it stopped in the town outside Chicago because he thought something was dragging; within two minutes it was struck from behind by another traveling at 86 miles per hour (138 km/h), killing 45. 
Sometimes high-speed rail can serve daily use of commuters. The Japanese Shinkansen high speed rail system is heavily used by commuters in the Greater Tokyo Area . They commute between 100 and 200 km by Shinkansen . [ citation needed ] To meet the demand of commuters, JR sells commuter discount passes and operates 16-car bilevel E4 Series Shinkansen trains at rush hour, providing a capacity of 1,600 seats. Several lines in China, such as the Beijing–Tianjin Intercity Railway and the Shanghai–Nanjing High-Speed Railway , serve a similar role with many more under construction or planned.