Often large farming areas can cross over a main highway. There are several considerations here including:
Eliminating water spreading onto roads (dangerous, wasteful, and in many circumstances illegal);
Eliminating the potential for large equipment to get away and move onto roads (for example large lateral irrigators);
Maintaining fence lines and tree lines;
Access to water sources
A rotor kit attached to a hardhose / water cannon configuration can keep waster away from the roads, or outside the boundaries.
A pivot can give you up to 90% efficiency, where the use of a hardhose (given that the land is flat without fencing or trees) would be affected by wind drift and give you approximately 70% efficiencies in this large open space. However, in this instance, in terms of land coverage the tables turn because the pivot will not cover the land that needs coverage, without having to move something that is by its very features not meant to be moved easily. In this situation the best choice would be to use a pivot and complement it with hardhose irrigation.
Hardhose irrigation is ideal in this instance because it is portable. You can move the hardhose to each plot. You can pull out whatever length hose you need for each application. If you only want half a run you pull out only half the length of hose. There is no infrastructure or heavy lifting involved. If you want a computerised model that connects to your phone you can still have it. If you want solar powered, water turbine features, these are available and recommended.