The CD&M Railway bought its rival and the railroad began interurban service in 1903.

Chiltern trains took over and developed the interurban service to Birmingham Snow Hill.

Line 4 included interurban service to Cernier.

However, the interurban service lasted less than five years, having already been abandoned by 1964, leaving trolleybuses in operation only within Valparaíso thereafter.

Even this fragment of interurban service did not last long.

It would have used a new electric train to provide interurban service along the existing and new GO corridors.

The interurban service was abandoned in 1933.

Bus service is provided by LatBus, which operates the interurban services.

Due to shared traffic with Traveltrain and freight services, interurban services on this line is limited during the off-peak.

End of interurban service from Portland to surrounding communities.