Why this petition matters.

Drivers traveling in both directions on I‑84 between Boise and Twin Falls frequently encounter vehicles lingering in the left lane, causing unnecessary congestion, frustration, and dangerous passing maneuvers. Idaho Code §49‑632 requires drivers to keep right except when passing, but this rule is often ignored—mainly due to a lack of signage along the route.

This petition asks the Idaho Transportation Department (ITD) to install “Keep Right Except to Pass” (R4‑16) signs along both the eastbound and westbound lanes of I‑84 between Boise and Twin Falls. These signs would reinforce existing Idaho law, improve safety, and help keep traffic moving more efficiently in both directions.

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Who we’re asking

We respectfully request that ITD and the District Engineers responsible for this corridor evaluate and approve the installation of proper signage on both the eastbound and westbound stretches of I‑84 between Boise and Twin Falls.

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What’s at stake

Installing these signs in both directions can:

Educate drivers about the legal requirement to keep right except to pass

Reduce left-lane cruising, road rage, and unsafe lane changes

Improve traffic flow and reduce travel delays

Align with federal MUTCD standards and promote lane discipline across Idaho highways

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How you can help

If you’ve ever been stuck behind a slow vehicle in the left lane—or seen dangerous behavior caused by drivers misusing the left lane—in either direction on I‑84 between Boise and Twin Falls, this petition is for you. Sign and share this with others who use this corridor regularly. A simple sign can make a big difference in keeping Idaho roads safe and efficient—for everyone traveling in both directions.