Testing further Cities: Skylines, 2015, so far I managed to build a perfect highway interchange. Except that this one, three layered, is overly expensive. Three times the price of my first attempt (some roundabout on top of the highway, typical of “Paris périphérique”) :

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The next logical option was to make a cheaper version by reducing the number of lanes of the direction changes. I even added pedestrian passage.

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It is way cheaper but it’s still a very big thing hard to place. So I just realized that having highway exits on both sides at the same spot could actually be avoided. It’s not clear yet whether two T intersect are obviously less space consuming than one single X intersect. So here’s my next proposal:

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All these are available in an asset collection.

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