Only Ramp segments are connected to a Roundabout. Effectively, it's the same as the previous two examples.) (Recall that the type connected to the ramp is used in the analysis. (Recall that a divided roadway is treated as one 'segment' for this rule.)Ī Ramp (connected to a Major Highway), a Minor Highway, and two Primary Street segments meet. Same as above, except the Major Highway and Minor Highway are divided roadways. (If we used Primary Street, routing would be penalized going from the Minor Highway to the Major Highway.) (The Major Highway can be thought to start/end at the Roundabout.)Ī Major Highway, a Primary Street, and two Street segments meet at a Roundabout.Ī Major Highway, a Minor Highway, and two Primary Street segments meet. Three Major Highway segments and one Minor Highway segment meet.Ī Major Highway, two Primary Streets, and one Street segment meet. Three Primary Street segments and one Street segment meet.Ī Major Highway and a Minor Highway cross so we have two segments of each type. One Primary Street segment and three Street segments meet. If the two highest-type segments have different types, use the lower type of those two segments.Ī Primary Street and a Street cross at a Roundabout so we have two Street segments connected and two Primary Street segments connected.If the two highest-type segments have the same type, use that type.Select the roundabout and set the road type as follows.If a ramp connects to the Roundabout, use the road type to which that ramp connects.The two connected segments with the highest type may have the same type or different types.If a road on one side of the roundabout is a divided roadway made of two one-way road segments, count the pair of one-way segments as a single segment.If a particular road goes through a roundabout, count the road as two separate segments, one on each side of the roundabout.Identify the two connected segments with the highest type listed above:.To determine what road type to use for the Roundabout: Since a roundabout is not a limited-access interchange, two freeways should never meet at a roundabout however, it is conceivable that a freeway might begin or end at one. The road types of interest in are, in order from highest to lowest, Freeway , Major Highway , Minor Highway , Primary Street , Street , Parking Lot Road , and Private Road . For proper routing and consistent appearance, the correct road type must be assigned to the roundabout itself. It is common to have multiple road types meeting at a roundabout. For further reference, please watch this video on roundabout creation.If this is the case, map the roundabout in this way while following the procedures outlined for scheduled reconfigurations. Some new roundabouts may be announced by local authorities before their construction, complete with road closures.If signage for any roundabout exit does not match what would be generated by the primary name of the exiting segment, add a customized turn instruction at the exit.If this roundabout is a local landmark, such as Dupont Circle in Washington, DC, an area place may also be drawn inside it with the Park and/or Junction/Interchange categories, as appropriate.When the process is complete, all other attributes have been set, and the edits are saved, this is how the new roundabout looks: To determine the speed limit, if applicable, see the speed limits section on roundabouts.

This is particularly important if addresses are on the roundabout.To determine the road type, see the road type section below. If the roundabout is a named circle on local signs, its segments can be named just like any other road. If the roundabout doesn't have a name, which is usually the case, click the None box next to Street. Please see the updating details to confirm the road section for details on this process. Like all new roads, each roundabout segment needs the country, state and city filled in.

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