One other data point is the cost for this upgrade compared to other proposed transportation projects. It's costing the state about $1 million per mile to acquire the rail line and the feds will cover the $1.45 million per mile to upgrade the line with improved signals, track improvements, etc. Total cost per mile is around $2.45 million. For comparison, it's projected to cost $175 million per mile to widen I-94 from 6 to 8 lanes in Detroit. The cost to add one lane in each direction on I-75 in Oakland County is projected to cost $37 million a mile. Oakland County states that it costs them up to $1 million dollar per mile to pave a gravel road. For all the hand-wringing there will be about the cost for this project, it gets the state ownership of the busiest passenger rail line in the state and provides upgrades to that line to allow train speeds up to 110 MPH at a cost that's less than 2.5 times per mile what it costs to pave a 2 lane gravel road.
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