https://p8nda.com/dictionary/%E5%8D%95%E8%BD%A8
单轨 (dānguǐ) · monorail, single track (railway) | p8nda
单轨 (dānguǐ) means monorail; single track (railway). Traditional 單軌. Stroke order, audio and example sentences with pinyin.
single track railwaymonorail
https://christiantoday.com.au/news/bidirectional-single-track-railway-lines.html
Bidirectional Single-track railway lines | ChristianToday Australia
single track railwaybidirectionallinesaustralia