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A2021 Seagull System Interchange

This is my take on a 'Seagull Interchange', or continuous green T-intersection. It's a 'system interchange', connecting a highway to a new highway. Because there are no elevated roads (the entire interchange is on ground level) this interchange is very cheap. That said, because this interchange has an intersection with a traffic light on it, it's not a 'free-flow' interchange.

After some testing I've found that the following settings for a Timed Traffic Light at the intersection are the most efficient:
- Three steps, with a green light for each of the three directions.
- Minimum time: 3 seconds.
- Maximum time: 20 seconds.
- Flow sensitivity: 2.

This interchange is made useing NCR and IMT. What you see in the screenshots is what you get after placing it, including the markings on the junctions. The interchange can be placed without the 'Intersection Marking Tool' mod. But without it the markings on the junctions will not be visible.

- Cost: 31.075,-
- Maintenance: 491,-
- Size: 90x47
- Max. height: 0m
- Min. height: 0m
- Nodecount: 28
- Lane mathematics are applied for a good traffic flow.
- Lane connections have been applied.

- As always; flatten the entire area the blueprint/template covers.
- To fully enjoy this interchange you need to subscribe to a couple of mods. These mods do not affect your games performance. They only add extra very handy tools to your game.

Because '3-lane highways' are the most commonly used highway type on maps, I've created this interchange to be connected (the highway ends on the interchange) to these 3-lane highways. The 4th lane on the 4-lane highways are used as exit and entry lanes.

Enjoy!


Want to know how 'Lane mathemetics' work and how to use the functions of TM:PE? I recommend watching some of Biffa's traffic fixing video's on Youtube

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