Urban Sky
Senior Member
Placing railway tracks into Highway medians will always escalate Highway construction costs substantially, as Railways require much more gentle horizontal and vertical curvatures due to operating at higher design speeds (160+ vs. 120 km/h) and with much lower rolling resistance (steel-steel vs. rubber-asphalt). The most costly parts, however, are the bits where you enter or leave the Highway median, as you‘ll invariably cross over or under one set of Highway lanes at a very acute angle, which is why most of the time, you’ll find railways built adjacent to Highways rather than in their median.
You can read here a lot more about these challenges:
pedestrianobservations.com
You can read here a lot more about these challenges:
![pedestrianobservations.com](https://s0.wp.com/i/blank.jpg)
Putting Rail Lines in Highway Medians
North Americans are in love with trains that go in highway medians. A large fraction of urban rail construction since World War Two, both light rail and full metro, has used highway medians as chea…