The Distance Adjustment screen of the Global Settings property sheet stores distance adjustment percentages and transit time factors for specific distance ranges. These values are used to calculate approximate distances and transit times when values cannot be retrieved using a distance engine. The calculation uses the direct distance between two geo-codes while considering the curvature of the earth.
For example, assume you have set up the following distance ranges, adjustment percentages, and transit time factors.
Distance |
Adjustment Percentage |
Transit Time Factor |
0 |
10 |
50 |
2000 |
20 |
40 |
5000 |
25 |
35 |
If the distance is 500 miles:
If the distance is 4,000 miles: