37.59—Differences in accessibility completion dates.
         Where different completion dates for accessible stations are established under this part for a station or portions of a station (e.g., extensions of different periods of time for a station which serves both rapid and commuter rail systems), accessibility to the following elements of the station shall be achieved by the earlier of the completion dates involved:
    
    
    
    
        
        (c) 
         An accessible path from common elements of the station to portions of the facility directly serving the rail system with the earlier completion date.