Is there another way people can get there other than by car?
Is there another mode of transportation you can take to get there?
How else do people get there?
いろいろな言い方ができますが、次のような言い方はどうでしょうか？
ーIs there another way people can get there other than by car?
「車以外で、そこに行く方法はありますが？」
ーIs there another mode of transportation you can take to get there?
「そこに行く他の交通手段はありますか？」
ーHow else do people get there?
「（車以外で）どうやってそこに行くんですか？」
ご参考まで！
カナダ 
