Route Concurrency Rules Show and Tell

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02-02-2021 08:33 AM
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It's the latest viral trend, sharing a screenshot and explanation of your Roads and Highways Route Concurrency Rules:

Ours is pretty basic:

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Its the lesser of route ID parameters but the top rule is a dominance event "Route Dominance" that identifies exceptions to the logic, with 19 exceptions designed to prevent double-counting centerline mileage for locations where opposite carriageway results in logical primary on each side.

KyleGonterwitz3_1-1612283494400.png

I'd like to know how other states define concurrency rules to gain insight to practices.

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RyanKoschatzky
Occasional Contributor III

NCDOT, I have attached our 11 digit route id

RyanKoschatzky_0-1612284150817.png

Field is RouteClass, RouteQualifier, RouteNumber and then RouteInventory

We have two spots where Interstates are concurrent, but inventory direction is on opposite sides of the road. This order keeps the routes paired and prevents an inventory of the higher number trumping the opposite inventory side of the dominate pair. ie I-73 southbound is dominate over I-74 eastbound.

We have no exception table like Kansas.