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Google has added two new functions for bikers. First, it has uploaded an incredibly extensive array of bike trails and bike lanes in major cities all around the country. This information is easily accessed by selecting "Bicycling" from the maps layer button labeled "More..." in the top right corner of Google Maps. Making this selection will cause several new symbols to overlay on the Google map: a dark green line indicating a bike path with no motor vehicles, a light green line showing regular streets with MARKED bike lanes, and dotted green lines showing streets specifically for cyclists -- usually streets with low traffic. How they got that last bit of information I can't even begin to guess.
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Clearly, this program still has bugs. I tried mapping out several different routes I take on a regular basis and Google keeps telling me to go ways that I know are not the best ways to go. In one case it even told me to go the wrong way down a one way street because that street had a designated bike path (it does, but it too is one way). My guess is that over the next few months cyclists from all over the country will be filing thousands of bugs and Google will use their feedback to get this new feature up to par. In the meantime, I need to come up with a new million dollar app idea.