TIIP is The City's list of approved specific priority transportation projects, from the construction of interchanges to purchase of light rail train cars, and from short term operational improvements to the design and building of new LRT lines.

The current TIIP list, approved by Council in November, 2005 and subject to an annual review, identifies priority projects to be completed between 2006 and 2015. These projects have a total estimated cost of $1.9 billion.