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I need a California roads network suitable for building a network dataset and routing to 120 locations. It needs to at least cover the Northern half of California. 2010 Census roads need alot of cleanup or I would try using those. Any ideas for places to start?

Thanks,

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  • Are you seeking Commercial Data sets (Navteq, TeleAtlas) or are you looking for 'free' Open Access datasets?
    – Mapperz
    Commented Mar 27, 2012 at 17:54
  • free open access data if possible
    – Boyle300
    Commented Mar 27, 2012 at 18:35

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The obvious answer is OpenStreetMap. If quality is good enough for your purpose.

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