Exit-Only Lane and Route Marker on I-94
At 6:10 p.m. on a Thursday, you are westbound on Interstate 94 in Minneapolis in the center lane of three. Traffic is stop-and-go at 15–25 mph. You want to continue on I-94 west toward St. Cloud. An overhead green sign shows three downward arrows: the left arrow is above 'I-394 WEST / EXIT ONLY,' the center arrow above 'I-94 WEST / St. Cloud,' and the right arrow above 'I-94 EAST / Minneapolis.' A solid white line separates the left lane from the center lane beginning 300 feet ahead. Your GPS says 'keep left' for I-394, but your destination is St. Cloud. A white circular route marker with black '55' appears on a smaller sign for the next exit. The left lane is moving faster, and a black SUV is close behind you in the center lane.
1. What does the left lane's 'EXIT ONLY' arrow mean, and what should you do if you want St. Cloud?
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The downward arrow over 'I-394 WEST / EXIT ONLY' assigns the left lane to the I-394 exit. If you stay in that lane, you will be forced to exit; you cannot safely continue on I-94 from that lane. Your destination is St. Cloud, which the sign assigns to the center lane under 'I-94 WEST.' The solid white line beginning 300 feet ahead is a warning that lane changes are becoming less safe, so make the decision now. Check your mirror and blind spot for the black SUV, signal, and move right into the center lane only when there is a gap. Do not follow a GPS instruction that conflicts with the overhead lane assignment. If traffic prevents the move and you end up in the exit-only lane, take the I-394 exit and reroute rather than cutting across the solid line or the gore.
2. What does the white circular '55' marker indicate, and how do you distinguish it from an interstate shield?
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The white circular marker with black numerals is Minnesota's state highway route marker: white circle, black outline, black number. It identifies Minnesota State Highway 55, a state route, not an interstate. An interstate shield is red and blue with white numerals and the word 'INTERSTATE' at the top; its shape and color are different. The '55' on the smaller sign is a route number, not an exit number and not a speed limit. Route markers tell you which road you are on or approaching; they do not by themselves tell you which lane to use. The overhead green guide sign, with its arrows and 'EXIT ONLY' message, is the better source for the lane decision you need to make for St. Cloud.
3. The center lane is moving at 15–25 mph while the left lane is faster. Is it safe to move left to pass and then cut back before the solid line?
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That is a high-risk move. The left lane is an exit-only lane for I-394, so the faster movement may be traffic flowing toward the exit, not a passing lane. You would be entering a lane that is committed to leaving I-94, then trying to re-enter the center lane near a solid white line and the exit gore. The black SUV behind you in the center lane may not expect a sudden move, and stop-and-go traffic leaves little gap. The safer choice is to stay in the center lane, accept the slower speed, and keep your route to St. Cloud. If you accidentally enter the exit lane, continue to I-394 and reroute; do not force a last-second lane change.