Stroads are Ugly, Expensive, and Dangerous (and they're everywhere) [ST05]

Stroads—street-and-road hybrids common across the US and Canada—are simultaneously dangerous, expensive, and ineffective at moving people, and they also drain city finances. The core problem is a design contradiction: stroads are built with highway-style features that encourage higher speeds, yet they also function like streets with frequent driveways, intersections, and turning movements. That mix creates constant conflict between fast-moving vehicles and everyday human activity, making walking and cycling feel unsafe and uncomfortable while still forcing drivers into stop-and-go congestion.

Strong Towns’ street-versus-road distinction frames the critique. A road is engineered for high-speed connections between places, with wide forgiving lanes, gentle geometry, clear zones, and limited access points—so vehicles can travel quickly with fewer interruptions. A street, by contrast, is a complex destination environment: buildings sit close to sidewalks, speeds are low, there are many entrances and exits, and the space is scaled for people to walk, shop, and linger. A strode tries to borrow the “road” form while keeping the “street” access patterns. The result is neither: it fails at being a safe high-speed corridor and it fails at being a comfortable, walkable destination.

Safety outcomes follow from that mismatch. Wide, straight, highway-like design elements encourage drivers to go faster, but stroads also require frequent traffic signals because of the many crossroads and access points. Long signal phases tied to higher speeds then produce signal-induced congestion—so drivers rarely get anywhere quickly. Meanwhile, the frequent turning in and out of driveways and the sheer number of conflict points raise crash risk. The transcript claims that most fatal crashes within cities occur on stroads, with particular danger to pedestrians and cyclists.

The economic case is equally blunt. Because stroads are built to highway standards, they typically have at least four lanes, wide shoulders and clear zones, and extensive traffic-control infrastructure. Turning lanes must be longer to match higher speeds, and as traffic grows, cities often add more signals—described as costing hundreds of thousands of dollars each. The physical footprint expands: land may need to be purchased, properties can lose value, and flood protection becomes more expensive due to impermeable asphalt. Even though stroads require heavy maintenance, they generate low tax revenue because the surrounding land becomes low-density, dominated by parking lots that “employ” few people and pay less in taxes per acre.

The proposed fix comes in two directions. One option is to convert a strode into a road by limiting access, removing painted bicycle gutters from the clear zone, and separating walking/cycling from vehicle flows. The other option is to convert it into a street by narrowing lanes, moving parking toward the curb or behind buildings, and bringing development closer to the roadway to restore human scale.

As proof of concept, the transcript points to the Netherlands’ “sustainable traffic safety” approach from about 30 years ago, which classifies infrastructure into three types: high-speed strov-like motorways with no traffic controls, distributor roads that avoid direct driveway access and rely on roundabouts when possible, and neighborhood access streets capped at 30 km/h with minimal through traffic. Over time, roads and streets replace stroads, reducing conflict and improving both safety and productivity. The takeaway is that transportation design manuals in the US and Canada need a reset—because stroads are framed as a default setting that produces deaths, sprawl, and financial decline at once.