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Ramp Meters

What they are, why we have them and what we've learned

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Twin Cities Metro Area Ramp Meter Study FAQs

In 2001, MnDOT released the results of an independent study (PDF 20 MB) on ramp metering in the Twin Cities metro area. Cambridge Systematics of Cambridge, Mass. evaluated the traffic flow and safety impacts associated with turning off all 430 ramp meters for six weeks as mandated by the 2000 Legislature. Below are the FAQs.

 

 

Post-study questions

 

Pre-study questions