The root element of a batch mode route request is always named batch_route_request.
The <start_location> child element specifies the start ___location for the route, as an address specification, a pre-geocoded address, or longitude/latitude point.
Each of the one or more <end_location> child elements specifies the end ___location for the route, as an address specification, a geocoded address, or longitude/latitude point.
The <___location> child element is never used in batch mode route requests.