Kansas City is home to the most freeway lane miles per capita among metro areas with more than 1 million residents. Kansas City's sprawl is so unmanageable it spans two states: Missouri and Kansas.
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The Katy Freeway in Houston, Texas, spans across 26 lanes making it the worlds widest. The freeway is broken down in to 12 main lanes (six in each direction), eight feeder lanes and six managed lanes.