What type of document is developed by field personnel to compute driving time?

The correct answer is a mileage sheet. A mileage sheet is specifically designed to document the distances traveled, which is essential for calculating driving time related to various tasks or projects. It typically includes details such as the starting and ending locations, the miles driven, and possibly any stops made along the route. By accurately recording this information, field personnel can effectively compute the time spent driving based on the distance and the speed of travel.

While expense reports and time sheets do track aspects of work-related activities, they are broader in scope and do not specifically focus on the distances traveled or calculate driving time. An expense report generally summarizes costs incurred, while a time sheet records hours worked. A travel itinerary is used to outline the plans for a trip, including travel arrangements and schedules, rather than specifically tracking mileage for time calculation purposes. Thus, a mileage sheet is the most appropriate document for this purpose.