Subject + 改道
The word 改道 (gǎidào) means "to reroute," "to change course," or "to detour." It combines 改 (to change) and 道 (road/way). It is commonly used in transportation and travel contexts to describe trains, flights, or vehicles taking an alternate route.
因为修路,公交车今天改道了。
Yīnwèi xiū lù, gōngjiāochē jīntiān gǎidào le.
Because of road construction, the bus was rerouted today.
台风来了,航班被迫改道飞行。
Táifēng lái le, hángbān bèi pò gǎidào fēixíng.
A typhoon came, and the flight was forced to change its route.
前面发生了事故,我们只好改道走。
Qiánmiàn fāshēng le shìgù, wǒmen zhǐhǎo gǎidào zǒu.
There was an accident ahead, so we had to take a detour.