The one-way bypass through the garden didn't help, so it's removed. The main entrance roundabout is rebuilt with four lanes, new highway ramps and lane connections set by hand in Traffic Manager, an elevated boardwalk at 9 m lets pedestrians cross, sewage gets cleaned up, and new high-rises and corner shops answer residential demand — but the roundabout is still the bottleneck.
What happens in this episode
I mixed up the numbers last time, so this is episode 11. Episode 10 ended with traffic leaving the main roundabout and cutting through the city. The one-way bypass through the garden didn’t help at all, and the garden still had garbage problems. As beautiful as it was, it has to go.
How it was built
A four-lane roundabout
The main entrance roundabout is rebuilt as a four-lane roundabout aligned with the existing roads, and the national road is upgraded. I don’t like highway on- and off-ramps arranged this way, because they force lane switching, so new ramps go in. Tip: to reverse a one-way road, select it with the upgrade tool and right-click. Then, in Traffic Manager, every lane gets its destination by hand. There are shortcuts, but I like to set it up properly. It ran smoothly at first.
An elevated boardwalk
Pedestrians still need to cross. With Page Up/Page Down the path starts at 9 m over the road and comes down to 3 m and then ground level, lined up with Move It and planted with leafy trees next to the redwoods.
Health, sewage and students
People were still getting sick and the cemetery needed emptying, so more healthcare went in. A wastewater fix had an almost immediate effect. The university had funding but not enough students, because there were too few high schools feeding it. A basketball court and track field went in, plus a 58 m parking lot to see whether people would use it.
Homes and shops
A new two-lane street with high-rise homes and small corner shops, because everyone needs a store around the corner. Lots of people walked, which I really like.
Still the bottleneck
The roundabout merged three lanes into one. Two lanes, lane rules, no pedestrians on the ring and yield signs helped a bit, but traffic still backed up. Maybe a cloverleaf is needed. I even thought about placing my Honmachi creation here. The final solution comes in episode 12.
Video chapters
- 00:00The garden bypass has to go
- 03:22A four-lane roundabout and new ramps
- 06:49Reversing one-ways and lane connections
- 09:52An elevated boardwalk
- 17:26Healthcare and a sewage fix
- 23:29Not enough students
- 27:00Sports and a parking lot
- 31:08High-rises and corner shops
- 35:20Three lanes into one
- 41:55Does it need a cloverleaf?
Clicking a chapter starts the video above at that point.
FAQ
How do you reverse a one-way road in Cities: Skylines?
Select the same road in the build menu, switch to the upgrade tool and right-click the segment. That flips its direction.
Why does traffic pile up when three lanes merge into one?
Cars change lanes at the last moment. Giving each lane a clear destination with lane connections — and using two lanes instead of one where possible — reduces the queues.
How high does a pedestrian bridge need to be?
I started the boardwalk at 9 m over the road and brought it down to 3 m and then ground level on the far side, using Page Up and Page Down to set the height.