How to Raise Roads in Cities Skylines: Road Building and Elevation Guide

Posted on 9 September 2026 | 11
News

Building a successful metropolis in Cities Skylines requires a complete understanding of transit hierarchy and infrastructure design. Raising roads is one of the most essential techniques for creating multi-level highway interchanges, overpasses, and smooth traffic flows across challenging terrain. Mastering road elevation mechanics allows city planners to bypass congested intersections and maintain high transit efficiency.

Basic Elevation Controls and Keybindings

To raise or lower a road segment while drafting a path, players use the Page Up and Page Down keys on standard keyboard setups. Each press adjusts the height step, allowing you to create elevated roadways, bridges, or subterranean tunnels. Ensuring you have sufficient space before placing elevated nodes prevents steep incline errors and awkward slope geometry.

Players can also customize the elevation step height through the road construction user interface. Adjusting the step size to smaller increments allows for fine-tuned control over overpass clearance and gradual highway ramps. This precise adjustment prevents vehicles from encountering sudden pitch changes that slow down transit traffic.

Managing Elevation Steps and Slope Smoothness

Creating realistic overpasses depends heavily on managing slope transitions between ground level and elevated segments. Drawing long, continuous road stretches instead of short connected nodes produces a far smoother gradient for traveling vehicles. Smooth inclines help traffic maintain maximum speed while reducing visual clipping along support pillars.

When crossing existing infrastructure, keeping an eye on pillar placement is crucial for avoiding terrain collision errors. Adjusting node positions or utilizing snapping tools helps position support columns cleanly alongside lower roadways. Strategic placement guarantees that elevated highway networks remain aesthetically pleasing while supporting heavy traffic loads.

Advanced Overpass Strategies and Traffic Flow

Elevated roads play a critical role in separating local neighborhood traffic from high-speed arterial connections. By constructing elevated flyovers across busy avenues, city builders can eliminate unnecessary traffic lights and reduce arterial bottlenecks. Integrating elevated roundabouts and custom ramps further streamlines transit flow through densely populated commercial zones.

Integrating elevated highways with elevated rail or pedestrian pathways creates a organized multi-layered transit corridor. Proper height management ensures that different transport modes cross over one another without structural interference. Planning these elevated corridors early prevents expensive demolition and redesign costs as your city expands into a bustling regional hub.