April 12, 2016, 9am PDT
An MIT study determined that traffic lights, and their inefficiencies, could be eliminated if all vehicles were equipped to regulate their speed and "batch" together as they approach intersections.
March 18, 2016, 6am PDT
The 2015 Inrix Traffic Scorecard provides less useful information about traffic problems than previous editions, as discussed in this City Observatory Commentary.
February 7, 2016, 9am PST
When they're not extinguishing actual flames, fire trucks can seem comically over-sized on city streets. Replacing portions of the fleet with smaller response vehicles might save money without sacrificing capability.
January 23, 2016, 7am PST
The "war on cars" and its pushback has a achieved a singular pitch in Belgium, where the national rail service has canvassed the country with a satirical ad campaign excoriating the country's horrible congestion.
January 3, 2016, 9am PST
Attorneys representing the state of New Jersey responded to the allegations of a class action lawsuit rising from the "bridge-gate" scandal.
January 2, 2016, 9am PST
To alleviate tourist traffic and serve residents, the Regional Transportation Commission of Southern Nevada has unveiled a long-term plan to invest billions in transit improvements including light rail and an expanded monorail.
December 23, 2015, 2pm PST
Researchers found a small uptick in Manhattan traffic during rush hour, as Uber gains more riders from 4 to 7 p.m. than taxis lose. Uber also holds general sway over the other boroughs when it comes to for-hire vehicles.
December 21, 2015, 9am PST
Determining whether to widen a street solely based on rush hour traffic ignores how the street is used and who uses it the rest of the day.
December 11, 2015, 5am PST
Not recommended reading for those currently operating a motor vehicle.
December 5, 2015, 1pm PST
Mexico City is considering a novel transit idea: two-person gondolas gliding along an aerial track. The costs of such a system may be far lower than extending the subway system.
November 12, 2015, 12pm PST
Pope Francis' much-publicized visit to the capital in late September saw reductions in congestion and better travel times. Event-specific telecommuting policies and transit route changes appear responsible for the minor miracle.
November 12, 2015, 5am PST
With a growing reputation for heavy local pollution, the city of Madrid will impose reduced speed limits and driving restrictions in its central core. On bad days, transit will be free to ride.
October 13, 2015, 6am PDT
The phrase "traffic congestion" can be misleading; some reductions in traffic speed are less harmful than others.
September 29, 2015, 2pm PDT
Thinking about congestion as an economic problem generates new solutions for the problem as well as a response to accusations of social engineering.
September 10, 2015, 11am PDT
A team of designers will convert one Mexico City's most dangerous highways into an urban oasis.
September 10, 2015, 9am PDT
As the city of Houston is growing, car traffic and rail traffic are also growing. The conflict between the two will be very expensive to resolve.
September 2, 2015, 10am PDT
Tired of standing on a street corner to count traffic? Technology is automating traffic counts and providing more detailed and accurate data to support planning.
August 23, 2015, 5am PDT
At some point, in places all over the country, freeways stopped working as they were intended. What can be done to improve one of the great frustrations of life with a car?
August 19, 2015, 9am PDT
It is difficult to imagine a time when Los Angeles' freeways symbolized access, efficiency, and modernity. Now that the city's love affair with freeways is nearly spent, what future do we envision for them?
August 5, 2015, 2pm PDT
Attempts to limit new construction to preserve neighborhood character are an example of "beggar thy neighbor" politics.