Light rail could be extended to the Terrasse de Chaudiere.

This could be done with diesel LRT (using Bombardier Talent, or Siemens Desiro). If ridership waranted, the line could be electrified at a later date.

This could also be done with electric LRT, extending the downtown system across the bridge into downtown Gatineau. The two options are not mutually exclusive.

Service from South Keys would have every second train travel across the Prince-of-Wales bridge (via Bayview station) to stop at Terrasse and Tache.

A station at the bus depot on Tache Blvd (at Terasse) would trivially connect to 14 different STO routes that originate from Aylmer. Many of these routes could be terminated at that (or at Portage), avoiding the congestion (and delays) that they experience while crossing the bridges. This would permit STO to run more reliable service.

For Ottawa based employees who work at Terasse or Place du Portage (PWGSC, Heritage, many others) the LRT would provide a very efficient service. The use of the Prince of Wales bridge would significant reduce bus congestion on Booth Street, Ridean Street, and King Edwards Avenue.

This extension would require one additional diesel vehicle, some signal upgrades, and construction of stations. This extension would cost less than $50M (for the diesel option) and could be operational in less than 1 year, provided the politicians were all willing.