On many interstate highway systems using milepost-based exit numbering, exit numbers correspond directly to the mile marker nearest to the interchange. If a motorist enters a northbound interstate at Exit 28 and proceeds along the highway until departing at Exit 83, what does the numerical difference between these two exit numbers indicate to the driver?
- The driver has traveled a distance of approximately 55 miles along the interstate between the two interchanges.Answer
- BThere are exactly 55 intermediate exits located between the driver's entry and exit points.
- CThe driver is currently located 55 miles south of the next state border or route terminus.
- DThe minimum recommended speed limit increases by 55 miles per hour between these two highway segments.
Answer
The numerical difference indicates that the driver has traveled approximately 55 miles along the interstate between the two interchanges.
Under standard milepost-based highway guide sign conventions, exit numbers directly reflect the distance in miles from the starting point of the route (usually the southern or western state line). Therefore, calculating the difference () determines the distance in miles traveled along that corridor.
Step-by-Step Solution
Key Concept
Interpretation of Milepost-Based Exit Numbering Systems on Highway Guide Signs
Estimated Time:1m 30s