The roadway is the part of a road that vehicles drive on — cars, buses, motorbikes — the hard strip for traffic, not the path at the side for people walking. Signs and safety talk like this word: stay off the roadway, something is blocking the roadway.

The roadway車行道 is the part of a road that vehicles drive on是道路上讓車輛行駛的那部分 — cars, buses, motorbikes像汽車、公車、機車 — the hard strip for traffic也就是給車流用的那條硬路面, not the path at the side for people walking而不是旁邊給行人走的路。Signs and safety talk like this word標誌和安全宣導喜歡用這個詞: stay off the roadway像「不要走上車行道」, something is blocking the roadway或「有東西擋住車行道」。

In ordinary speech most people just say the road. In American English the walking part is the sidewalk; in British English that walking part is the pavement.

In ordinary speech在日常口語裡 most people just say the road大多數人就只說馬路。In American English在美式英語裡 the walking part is the sidewalk人行走的那部分叫 sidewalk（人行道）; in British English在英式英語裡 that walking part is the pavement那個走路的部分叫 pavement（人行道）。

Though actually, British road people also say carriageway for the driving part, so roadway can feel a little more American or official. And when the word was first put together, road still meant riding, so a roadway was a way for riding on, not yet a fancy name for a street.

Though actually不過其實, British road people also say carriageway for the driving part英國的道路業界人士也把行車的部分稱作 carriageway（行車道）, so roadway can feel a little more American or official所以 roadway 這個詞可能感覺比較美式或比較正式一點。And當這個詞剛被組成的時候 when the word was first put together, road still meant riding road 那時候還是指「騎乘」, so a roadway was a way for riding on所以 roadway 原本是指供人騎乘的一條路, not yet a fancy name for a street還不是一條街的正式名稱。