rapid transit rails abbreviation: crossword clues

Matching Answer
Confidence
ELS
60%
TRAM
60%
SST
60%
HARE
60%
MTA
60%
RAFTS
60%
STS
60%
SORAS
41%
HOTBED
41%
ETAL
20%
e.g. Greek Cheese
e.g. O?D (Use ? for unknown letters)