Uber and Lyft may have actually made traffic worse in San Francisco

Ride-sharing services made delays 62 percent worse in the city.

Cannabis legalization increases traffic fatalities — but mostly in neighboring, un-legalized states

It’s probably because of all the people driving interstate to get high, then driving back already high, the researchers believe.

Watch out! More pedestrians are killed by cars on Halloween than any other regular evening

Kids aged 4 to 8 are the most at risk.

Loud noises are bad for your heart — and your cells

More and more evidence suggests that chronic noise causes cardiovascular diseases.

These are the cities with the worst traffic (continent by continent)

Europe’s and North America’s leaders are quite surprising.

Living near noisy traffic makes it harder for women to get pregnant

Sleep quality might have something to do with the reported findings.

Living near a crowded street seems to increase dementia risk

Move away from the busy roads.

Simulate your way out of (or into) the perfect traffic jam

Computer models like Traffic-Simulation are designed to figure out how each traffic component adds towards a jam. The simulation models various conditions such as number of trucks or cars on the road, average distance and speed of cars, lane geometry and so forth, to explain how they develop.

A fantastic, concise explanation of why traffic jams happen

Tom Vanderbilt, journalist, blogger, and author of the best-selling book, Traffic gave an awesome 20 minute presentation on why traffic jams happen, and why it’s our fault for rush hour traffic. “[T]he individual driver cannot often understand the larger traffic system,” says Vanderbilt. The video is definitely worth the watch, but I’ve plucked some of the most interesting points on