${s.name}: ${pick(title, 'en')}
Crosswalks, school zones, and sharing the road with people on foot.
この問題はオリジナルであり、公式マニュアル「${s.manual.title}」(${s.manual.edition})、${s.agency} に基づいています。
Did you know?
- In 1927, the Ford Motor Company produced its fifteen millionth Model T.
- In 1939, the 3-M Corporation introduced reflective sheeting for roadside signs.
- In 1942, the Willow Run and Detroit Industrial Expressway, the nation's first four-lane divided highway, was completed. Nearly 42,000 Detroit-area motorists used it daily to commute to the Ypsilanti bomber factory.