1. Please use `loc_name=` , as this is not the most "common" , nor an officially recognized name. I don't know if you are from Hong Kong, but even people here may not know there's a specific legal meaning to streets and street names. `name=` should be reserved for that. It's the one signposted on street name signs, which is also the decisive factor for `name=` from the ground-truth principle in OSM.  
2. Please don't do transliteration by translating literally. In OSM, you shouldn't attempt to synthesize names in other languages.  It's perfect to have only `loc_name=電車路` + `loc_name:yue=電車路` for a nickname . No need to make up a  `loc_name:en=` yourself. 