Types of Direction strings.
| Constant | Value | Description | 
| esriDSTGeneral | 0 | General directions string type. | 
| esriDSTDepart | 1 | Depart directions string type. | 
| esriDSTArrive | 2 | Arrive directions string type. | 
| esriDSTLength | 3 | Length directions string type. | 
| esriDSTTime | 4 | Time directions string type. | 
| esriDSTSummary | 5 | Time directions string type. | 
| esriDSTTimeWindow | 6 | Time Window directions string type. | 
| esriDSTViolationTime | 7 | Violation Time directions string type. | 
| esriDSTWaitTime | 8 | Wait Time directions string type. | 
| esriDSTServiceTime | 9 | Service Time directions string type. | 
| esriDSTEstimatedArrivalTime | 10 | Estimated Arrival Time directions string type. | 
| esriDSTCumulativeLength | 11 | Cumulative Length directions string type. | 
| esriDSTStreetName | 12 | Street name directions string type. | 
| esriDSTAltName | 13 | Alternate street name directions string type. | 
| esriDSTBranch | 14 | Sign branch information directions string type. | 
| esriDSTToward | 15 | Sign toward information directions string type. | 
| esriDSTCrossStreet | 16 | Cross street name directions string type. | 
| esriDSTExit | 17 | Sign exit number directions string type. | 
 
Product Availability
Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server. Requires Network Analyst Extension. 
.NET Samples
Routing and geocoding application using the NAServer extension in ArcGIS for Server via a Web service (Code Files: 
GeocodeRoute_WebServiceClass) | 
Route application using the NAServer extension in ArcGIS for Server via a Web service (Code Files: 
Route_WebServiceClass)