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INDOT Transportation Systems Management Operations (TSMO)

Ramp Metering Comparison graphic. Freeway on top titled "Freeway wihout ramp metering" shows cars backed up on entrance ramp merging onto a crowded freeway. The bottom, titled "Freeway with ramp metering" shows cars waiting on the entrance ramp at the ramp meter, waiting to merge onto a much less congested freeway.

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TSMO Fact Sheet

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TSMO Infographic

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