[1gn1t10n]

I wonder if providing this kind of information to the public can lead to worse performance (commute time).

This reminds me of Braess's Paradox [1].

[1] https://en.wikipedia.org/wiki/Braess_paradox

[joosters]

I recommend the excellent book 'Traffic' - http://www.amazon.co.uk/Traffic-drive-what-says-about/dp/014... - it covers this pretty well.