Overlapping curb signs on a downtown delivery
It is 3:25 p.m. on a Tuesday. You are driving a 20-foot delivery van in a Missouri downtown and need about 20 minutes to unload a heavy crate at a store entrance. The available curb space is 24 feet long. The curb directly in front of the store has two signs on one post: the upper sign reads 'NO PARKING 7–9 AM AND 4–6 PM MON–FRI'; the lower sign reads '30 MINUTE PARKING 9 AM–4 PM.' A second sign 40 feet ahead, at the alley, reads 'NO PARKING HERE TO CORNER.' The curb between the store and the alley is not painted. A fire hydrant is 15 feet behind your van's intended rear bumper. The store entrance is midway along the block. Traffic is moderate, and a delivery truck is double-parked across the street. You want to stay legal and avoid blocking access.
1. Can you legally use the curb space at 3:25 p.m., and for how long? Explain how the two signs interact.
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At 3:25 p.m. on a Tuesday, the upper restriction does not apply: 3:25 is outside 7–9 a.m. and outside 4–6 p.m. The lower sign controls, so parking is allowed for up to 30 minutes. Your 20-minute unloading job would end at about 3:45, which is inside the 30-minute limit and before the 4 p.m. no-parking period begins. The limit is a maximum, not a guarantee, so if unloading runs late you must move by 4 p.m. rather than assume the 30 minutes continues. Read the signs as a stack: the no-parking times remove the space entirely, while the 30-minute rule limits how long you may stay during the allowed window. Also check for any curb marking or driveway before parking; here none is described between the store and the alley.
2. How should you position the van within the space, given the hydrant and the alley sign?
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The hydrant is a fixed clearance problem, and the alley sign begins another no-parking zone. Do not simply center the van in the 24-foot space. Pull forward enough that the rear bumper is clearly more than 15 feet from the hydrant, because being exactly at 15 feet leaves no margin and may violate the hydrant clearance. At the same time, keep the front bumper short of the alley sign so you are not inside the 'NO PARKING HERE TO CORNER' zone. The 20-foot van in a 24-foot space leaves only 4 feet of total slack, so you will have to choose the position deliberately: bias the van toward the alley end, but not into the sign's zone, and keep the alley and store entrance usable. Do not block the alley while unloading.
3. If you arrived at 3:55 p.m. instead, what would change?
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At 3:55 p.m. the 30-minute sign is still in effect, but only for five more minutes before the 4–6 p.m. no-parking period starts. A 20-minute unload cannot be completed legally in that window. You should not start the job and hope to finish; that would leave the van parked during a no-parking time. The practical choices are to find another legal space, delay the unload until after 6 p.m., or use a different location. This is the kind of judgment the signs require: the space is legal at 3:25 but not a safe bet at 3:55 for a job that takes 20 minutes. Recheck the sign times rather than treating '30 minute parking' as permission to stay 30 minutes regardless of the next restriction.