Police Scotland say the 38-year-old was hurt at Drumpellier Country Park in Coatbridge on Monday.
The 17-year-old was attacked near Blair Road and Auldhame Street on 27 June.
The teenager was approached by a man as she walked on a lane near Blair Road and Auldhouse Street at about 01:00.
Dr Krishna Singh was jailed over sexual offences against 47 patients but his victims believe many more women could come forward.
The line between Monklands and Kirkintilloch opened on 17 May 1826 and played a key part in the industrial revolution.
The injured teenagers were part of a larger group who clashed with another group at Drumpellier Country Park in Coatbridge.
Councillors will discuss the report but will be given 'time and space' before making a final decision.
North Lanarkshire Council says turning the facility into an active play area would boost footfall and increase revenue.
Officers say a man, aged 40-50 years old, attacked the boy on a dirt track parallel to the Heatherbell crossing by Gartgill Road.
