16 Ways to Design a Better Intersection---And Better Cities
Urban designers have lots of tricks for turning a city intersection into something more like a plaza and less like a freeway interchange.
Mike Lee
Mike Lee01Self-Driving Vehicles
Studded with sensors and humming with AI, autonomous cars could slash death rates at intersections while eliminating traffic signals altogether.
Mike Lee02Traffic Sensors
Induction loop sensors detect the metal bulk of a car and talk to signal lights. They’ve been in use since the ’60s and are crucial to traffic flow.
Mike Lee03Bump-Outs
Squeeze the roadway as it nears the intersection and traffic slows to navigate the passage.
Mike Lee04Protected Bike Lanes
Expect to see more of these—the US Department of Transportation recently endorsed the design as a way to create “low-stress bicycle networks.”
Mike Lee05Bike Rails
Bike rails may be just a few metal tubes welded together, but for any cyclist who has waited on tiptoes for the light to change, they’re a welcome addition.
Mike Lee06Bike Signals
A light timed for cyclists gives them just a few seconds’ head start, but that’s enough to get up to speed before traffic roars to life.
Mike Lee07Speed Tables
`Raising the crossing puts drivers at eye-height with pedestrians. “It makes it obvious that pedestrians rule,” says Steve Mouzon, an architect and urbanist.`
Mike Lee08Scrambles
By stopping all traffic at once, scramble crossings provide better separation of cars and people, allowing foot traffic to move in any direction—even diagonally—in relative safety.
Mike Lee09Parklets
By reclaiming street parking, parklets offer pedestrians a bit of respite that, when well designed, can feel like a swanky sidewalk café, Mouzon says.
Mike Lee10Trees
“One thing traffic engineers try to get rid of as quickly as possible is street trees,” Mouzon says. Bad idea. For a walkable street on a hot day, the more trees, the better.
Mike Lee11Dedicated Shelters
On many bus routes, shelters protect waiting riders from the elements. Boarding goes faster if fares are collected on the street, not on the bus.
Mike Lee12Induction Charging
`Overhead wires mar the streetscape and don’t give bus drivers much leeway. Chargers embedded in the pavement can juice up electric buses as they roll.`
Mike Lee13Cool Stations
Subway stops often feel like caves—which can be great! Stockholm embraces subterranean chic, leaving bedrock exposed at some stops.
Mike Lee14Sidewalk Cafés
`Cute eateries are the key to a great street. “There are few silver bullets in urbanism,” Mouzon says, “but this is one of them.”`
