Or, if you prefer:
Half of Toronto's Eglinton street was originally envisioned as a mid-town highway back in the 1970s, and was NIMBYed down to an arterial street that people swarm across anyways. In 2007 they started working on (problematic) light rail across the city. 16 years later, construction is still going and functionally stalled for a series of excuses summing up to "Trying to save money earlier is costing us money now?" and "Corrupt kickbacks results in sleaze?"
Who coulda predicted that, eh?