Directions are meant to get people easily and most directly from point A to point B, but there are many factors that may not be taken into account. Highways that are under construction, roadways that are closed and even newly constructed roads that don't appear on the latest map are some unforeseen conditions that slow folks down.
The standard road map has long been the main resource for directions, but other options exist. Online maps, available at sites such as Maps.Google.com and Mapquest.com, will chart a course from the starting point to the destination with a few clicks of a mouse. Larger state or regional atlases are also available for trips and transcend the standard street maps.
Many maps will not take into account the terrain over which motorists will be driving. This plays a major part in travel planning, especially for larger vehicles that may have difficulty. Steep, coastal highways, mountainous roads and byways through forests can hinder progress. A route may look like the shortest distance on the map, but may take several times longer than expected because of difficult terrain.
Truck drivers depend on maps and directions, which is why there are annual guides such as "Exit Source Professional Truck Drivers Exit Guide." This reference tool not only helps map out the best roadways to take, but also includes listings of all the rest stops and highway exits, complete with the amenities found at each. This is an invaluable resource for any frequent road traveler and specially notes roadways and amenities that are suitable for big rig drivers.
Whenever possible, rely on more than one source for directions. Checking a road map and then supplementing the findings with a quick check of the web site of that state's transportation department can give you insider information on construction work or any other area delays. Asking locals is also a good way to go as they generally know the area well. However, be wary of directions that are second nature to them but wholly unknown to an outsider, such as "Turn left where the gas station used to be in 1972."
