Namdoc:Roundabouts

NAM Documentation

Introduction Feature Guides Base Network Content Traffic Simulator Transit Stations Additional Bridges Wide-Radius Curves and Fractional Angle Networking Roundabouts Turn Lanes and TuLEPs RealHighway Mod Network Widening Mod Elevated Road Viaducts Rural Roads Project Maxis Highway Override RealRailway Mod Tram and Dual Networking High Speed Rail Project Flexible Underpasses and Underground Rail Canal Addon Mod Diagonal Bridge Enabler Index Glossary

Roundabouts are a separate component of the NAM, which are used to reduce traffic congestion for intersections. Different variations exist for Roads (2x2), Streets (2x2), One-Way Roads (3x3) and Avenues (4x4) which can be selected individually in the installer.

Road Roundabouts

To trigger the initial Road roundabout, you must draw a Road circle in a 2x2 tile area using the Road network tool. There currently exist many variations with one, two, three or four orthogonal or diagonal Roads stemming from this initial 2x2 tile area.

Street Roundabouts

Street roundabouts are triggered in the same way as Road roundabouts, but using the Street network tool.

One-Way Road Roundabouts

To trigger the initial One-Way Road roundabout, you must draw a One-Way Road circle in a 3x3 tile area. It interfaces with one, two, three or four roads on either orthogonal or diagonal entry:

• Street (orthogonal only)
• Road (RD-2)
• One Way Road (OWR-2)
• 2-lane Highway (RHW-2)
• Single lane Highway (MIS)

To interface this 3x3 roundabout with the NWM additional road types, you will need a single tile stub of Road (RD-2) or One Way Road (OWR-2).

Avenue Roundabouts

Avenue roundabouts are FLEX puzzle pieces which can be found under the Avenue Roundabouts and Interchanges button. Each type of Avenue roundabout can be accessed using Tab and Shift-Tab keys while in preview, in NAM 36 as follows:

• Roundabout Avenue 4x4
• Roundabout Avenue 4x4 with offset diagonal avenue
• Highway over Avenue Roundabout
• Avenue Roundabout with GLR
• GLR-Avenue roundabout - curve
• GLR-Avenue roundabout - T-junction
• GLR-Avenue roundabout - 4way-junction
• Highway above GLR-Avenue roundabout
• Avenue Y-Stack
• Freeway Exit - Straight
• Turbo Roundabout, AVE-4 (Home/End for variations)
• Turbo Roundabout, RD-4 (Home/End for variations)
• Turbo Roundabout, RD-6 (Home/End for variations)
• Roundabout, AVE-4 x ARD-3 (Home/End for variations)
• Roundabout, RD-4 x ARD-3 (Home/End for variations)
• Roundabout, RD-6 x ARD-3 (Home/End for variations)

After placing down one of these puzzle pieces, you can drag orthogonal and diagonal Avenues into the roundabout in order to connect it with the rest of your network. By default, the Avenue roundabout comes with FLUP support. If this functionality is not required, you can bulldoze the inner 2x2 tile fountain prop after building the roundabout and replace it by any other items. There are also a few Avenue roundabout variations including crossings with Elevated Highway and GLR.

Note that the same button also contains the Avenue Y-Stack interchange and turbo roundabouts.

Turbo Roundabouts

Turbo roundabouts are static puzzle pieces that can be found under the Avenue Roundabouts and Interchanges button and serve as circular intersections between a double-tile and a single-tile network, such as Avenue/RD-4/RD-6 and ARD-3/TuLEPs. In order to make sure they can be properly connected to your network, it is advisable to bulldoze a 2x1 tile intersection between two suitable networks and plop the turbo roundabout onto the resulting gap.