By Richard Riehl / Riehl World
Carlsbad’s elected officials took the city’s vision of “a small town feel and beach community character” and twisted it into a developer-friendly General Plan. Fortunately, their questionable integrity and patronizing “we know best” attitude are not reflected in the leadership and staff of Carlsbad’s talented, courteous and responsive city employees.
The 2009 public opinion survey that led to the development of the city’s Community Vision produced statistically sound results. But Mayor Hall and his council colleagues used them to justify land use changes allowing shopping centers and multi-use commercial/residential housing near the beach and lagoon.
The most recent online survey, developed by city staff for the Tamarack Area Coastal Improvements Project, asks respondents to choose from three options designed to improve safety, beach access and traffic flow at the intersection of Carlsbad Boulevard and Tamarack. After careful consideration, I chose the Roundabout Plan for the reasons listed in the staff’s comparative summary.
Improve pedestrian and cyclist safety and access
The Roundabout Plan would widen the sidewalk on the west side of Carlsbad Boulevard, over the bridge, from 4 ft. to 16 ft; the safety buffer for bikes from 5 ft. to 8 ft. alongside Carlsbad Boulevard, and from 0 to 2 ft. along Tamarack.
Reduce air pollution, improve parking and landscaping
It’s the only option that would reduce air pollution and traffic noise. It would also add fourteen new parking spaces and provide larger gathering and viewing areas than the other two options.
Improve safety without sacrificing traffic flow
Finally, the roundabout is the best way to improve safety for drivers, bikers and walkers without increasing drive through time. (See below)
To trust, but verify the staff report, I researched the results of studies comparing standard intersections vs. roundabouts nationwide. Here’s what I found in an April 2016 report by the Insurance Institute for Highway Safety (IIHS) and Federal Highway Administration.
Safety
Roundabouts typically achieve a 37 percent reduction in overall collisions, a 75 percent reduction in injury collisions, a 90 percent reduction in fatality collisions, and a 40 percent reduction in pedestrian collisions. Serious crashes are essentially eliminated because vehicles travel in the same direction and at low speeds, generally less than 20 mph in urban areas. They also reduce the likelihood of rear-end crashes by removing the incentive for drivers to speed up to beat light changes and by reducing abrupt stops at red lights.
Traffic flow
Several studies have reported significant improvements in traffic flow with conversion to roundabouts. Most research focused on single-lane roundabouts, as proposed for Carlsbad Boulevard/Tamarack. A study of three locations in New Hampshire, New York and Washington state, where roundabouts replaced traffic signals, found an 89 percent average reduction in vehicle delays and a 56 percent average reduction in vehicle stops.
Public opinion
Drivers may be skeptical of or opposed to roundabouts. But several Institute studies show opinions quickly change when drivers become familiar with them. In several studies, 36 percent of drivers supported the roundabouts before construction compared with 50 percent shortly after. Follow-up surveys after they had been in place for more than a year found public support increased to about 70 percent on average.
My first experience with roundabouts, called traffic circles at the time, occurred at DuPont Circle in Washington, D.C. It was a multi-lane nightmare. It took me several rounds of terror before getting the hang of it and exiting without incident. I swore off future encounters with the beast.
But a few years ago, when confronted with a single lane roundabout in Encinitas, I discovered their benefits of safety and convenience. So I welcomed Carlsbad’s new version north of the village. I often cursed the yield sign as I drove south on Coast Highway, approaching the intersection intending to make a left turn. It forced me to estimate the speed of an oncoming car heading north on a collision course as it crested the hill ahead. The new roundabout has put an end to my flashbacks of games of chicken.
I’ve been critical of the city’s elected officials for deferring to developers the shaping of Carlsbad’s future. But with 22,000 additional residents expected to move into town over the next 20 years, decisions on traffic projects such as this one need to be made on their merits alone, despite the lingering distrust of the city’s current elected leaders.
I think the Roundabout Plan is the best way to improve public safety, beach access and traffic flow. But citizen activists have shown the importance of being informed, involved and engaged in political action. So I’m hoping there will be a record number of respondents to this survey.
Thanks to citizen activism, a regional shopping center will not despoil a city lagoon, a puppy mill store has left town, and five candidates are challenging the two city council incumbents in the November election.
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Thank you for the informed and thoughtful post. I look forward to having similar intersections in Pacific Beach. …where bikers, skateboarders and pedestrians compete with cars to cross streets.
I am very glad that local planners are finally recognizing the advantage of roundabouts instead of orthogonal intersections. True, they don’t belong everywhere, but many locations can benefit from their use. Of course drivers must learn how to properly use them, but that’s true of freeways, too!
There used to be one on Harbor Island that was stupidly changed to a ‘T’ intersection. The circles in Bird Rock work well, except that their curvature is too small. But, that was dictated by the width of the right-o-way.
Exactly right- roundabouts don’t belong everywhere. There are already plenty of chokepoints on Coast Highway in Carlsbad, both at the South and North ends! Plus Caltrans says this is an alternative route to I-5 in times of emergency. Too many cars simply use this road on a daily basis to make a roundabout successful.