1. Go to the Google search page at http://www.google.com and click "Maps" on the black menubar located at the top of the page.
2. On the Google Maps page, click the "Get directions" button.
3. Enter address information. Enter the client's address in box A. Enter the facility's address in box B. Click "GET DIRECTIONS."
4. After clicking "GET DIRECTIONS", a result page will be shown. From the results, locate the route with the shortest distance. Multiply this number by 2 to get the product. Round to the nearest whole number to get RTM. In this example, the shortest trip distance is 16.4. Multiply this number by 2 to get the product of 32.8. Round to the nearest whole number to get the RTM of 33.
NOTE: The direct internet address to Google Maps is http://maps.google.com/