The most obvious benefit to slower speed limits in cities is improved safety. Fewer crashes and injuries including collisions with bicycles can be expected.
But there are other several other possible gains that can be realized by forcing drivers to slow down on congested city streets, according to a recent CityLab article. Ironically, one might be to enable people to get around faster.
If separated but narrower travel lanes with 15 mph speed limits that prioritize non-cars are created, more people might opt for electric scooters and bicycles, which can outpace cars in the most congested streets. (The average car in midtown Manhattan creeps along at just 4.7 mph.)
Slower speeds would also make it safer and more practical to deploy autonomous vehicles. Several U.S. cities have reduced speed limits and New York has revived its program to enforce speed limits by cameras in school zones.
Related Stories
Codes and Standards | Feb 12, 2015
New Appraisal Institute form aids in analysis of green commercial building features
The Institute’s Commercial Green and Energy Efficient Addendum offers a communication tool that lenders can use as part of the scope of work.
Codes and Standards | Feb 8, 2015
ASHRAE, IAQA approve consolidation
Under the consolidation, IAQA will become a part of the ASHRAE organization while maintaining its own brand and Board of Directors.
Codes and Standards | Feb 6, 2015
Obama executive order requires federal construction projects to consider flood damage caused by climate change
To meet the new standard, builders must build two feet above the currently projected elevation for 100-year floods for most projects.
HVAC | Feb 6, 2015
ASHRAE, REHVA publish guide to chilled beam systems
The guide provides tools and advice for designing, commissioning, and operating chilled-beam systems.
Codes and Standards | Feb 2, 2015
AGC working with EPA on website to help with environmental rule compliance
The goal is for the site to be improved to make it easier for construction contractors to learn how to comply with federal and state environmental guidelines.
| Feb 2, 2015
New York law requires informing firefighters of wood truss construction
New York enacted a law that could make firefighting a bit safer by mandating property owners inform government and first-responders when they build or rehabilitate a building using "truss-type" pre-engineered wood or timber.
| Jan 14, 2015
Ontario code changes boost accessibility for people with disabilities
The new amended Ontario building code includes several provisions that improve accessibility for those with disabilities.
| Jan 14, 2015
American Concrete Institute releases Spanish edition of structural concrete code
New York City last year adopted the National Institute of Standards and Technology (NIST) recommendation to require additional exit stairways in high-rise buildings.
| Jan 14, 2015
Terrorism Risk Insurance Act renewed
President Barack Obama signed the Terrorism Risk Insurance Act law on Jan. 12.
| Jan 9, 2015
Academy of Art in San Francisco under fire for code violations
The fast-growing Academy of Art is under intense scrutiny by the City of San Francisco for code violations.