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Road Corridors

Add longitudinal information to your road corridors

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Written by Allsite Support
Updated yesterday

Pre-requisite - road corridors and intersections have been created in your DWG

Allsite.ai will soon release a feature to automatically build corridors, intersections and cul-de-sacs!

Road Settings (Allsite.ai)

Default road grades are inherited on project creation. These will be used as default parameters when the road type is changed within your Civil 3D model. By default all road corridors will inherit the LOCAL road type longitudinal settings, and can be changed on each road region within the corridor.

Editing road settings (i.e. longitudinal grade) per road

After Corridors, intersections, knuckles and cul-de-sac's have been created you can go in and customize longitudinal grade information and other information on the Civil 3D Assembly for each region.

Select the Assembly and edit road settings

Road Settings (Applied to Assembly)

Note - you do not need to configure settings on curb return assemblies. Intersection grade information is defined elsewhere.

Setting

Description

Road Category

This maps to the settings configured for you Allsite.ai project on the web. Changing the type will revert most longitudinal grade parameters to the projects default.

Network Placement

Informs Service AI where services can be applied within the road corridor. This will inherit network placement settings if they are configured in your Allsite.ai project in the web.

Design Speed & Vehicle

This defines the dimensions of the vehicle. This is not used by Level AI and will be used for future layout assist tools.

Min/Max Grade

Defines the bounds that Level AI will vary the design to meet requirements. It is recommended to not over constrain the grade to give Level AI ability to grade.

Max K and Min Sag K, Crest K

Defines longitudinal bounds for the road to be designed with.

Modifier Settings (Applied to Sub Assembly)

Setting

Description

Pit spacing

Informs Service AI of the spacing of catch basin / catch pits along the road.

Network offsets

Informs Service AI where services can be placed relative to the curb.


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