Original sentence: Croydon is sandwiched between two major roads: Parramatta Road and the Hume Highway (also called Liverpool Rd).Within Croydon itself, there is only one road bridge (Meta St bridge) over the railway line connecting the north and south parts of the suburb
Edited sentence: Croydon is sandwiched between two of the city’s most important arteries - Parramatta Road and the Hume Highway (also called Liverpool Rd).That is the Meta St bridge next to the railway station.Within Croydon itself, there is only one road bridge over the railway line connecting the north and south parts of the suburb