What is the primary method of distance along Interstate Freeways?

What is the primary method of distance along Interstate Freeways?

• A. Subtract exit numbers
• B. Map bar scale
• C. Red Pointers
• D. Distances between junctions and towns (black numbers)

Answer: (A)

Interstate highways use mile-based exit numbers. Each exit is placed at a mile marker, so the distance between two points along the freeway is basically the difference between their exit numbers. For instance, if you’re going from an exit labeled 80 to one labeled 105, you’re about 25 miles apart. Mile markers along the route also align with this system, providing a consistent way to gauge distance. Signs that show distances to towns exist, but the quickest and most reliable way to estimate how far you’ll travel between exits is by subtracting the exit numbers.

Interstate highways use mile-based exit numbers. Each exit is placed at a mile marker, so the distance between two points along the freeway is basically the difference between their exit numbers. For instance, if you’re going from an exit labeled 80 to one labeled 105, you’re about 25 miles apart. Mile markers along the route also align with this system, providing a consistent way to gauge distance. Signs that show distances to towns exist, but the quickest and most reliable way to estimate how far you’ll travel between exits is by subtracting the exit numbers.