I am trying to find the best route and the shortest driving time from districts to a highway. My guess is to use Network Analyst for finding the best route. However, I wasn't able to even begin by creating a new route layer. The option was grayed out. Did anyone know how to solve this? Also, can I also use Network Analyst to find the shortest driving time? I am very new to ArcGIS so any suggestions will be really helpful! Thanks!