Long Beach Traffic Circle
| Los Alamitos Circle | |
|---|---|
Map showing location of the Long Beach Traffic Circle in State of California, Southern California, and including nearby roads and interconnect with the Pacific Coast Highway.
|
|
| Location | |
| Long Beach, California | |
| Coordinates: | 33°47′24″N 118°08′33″W / 33.79°N 118.1425°WCoordinates: 33°47′24″N 118°08′33″W / 33.79°N 118.1425°W |
| Roads at junction: |
 SR 1 SR 19Los Coyotes Diagonal |
| Construction | |
| Type: | Roundabout |
The Los Alamitos Traffic Circle, informally known as the Long Beach Traffic Circle (or just the Traffic Circle, as there are no other high volume traffic circles in Southern California), is a roundabout at the intersection of Lakewood Boulevard (State Route 19), Pacific Coast Highway (State Route 1/former US Highway 101 Alternate) and Los Coyotes Diagonal in Long Beach, California. The intersection was originally constructed as a traffic circle in 1930 and reconstructed as a modern roundabout in 1993.
In 1930, German engineer Werner Ruchti was contracted to design the traffic circle, which was to be based on European models. Construction was expedited in order to accommodate the increased vehicle traffic that was expected with the 1932 Summer Olympics, held in Los Angeles, as many of the aquatic and rowing events were to be held in Long Beach.
The Los Alamitos Traffic Circle was one of the first of its kind to be constructed in the United States, and prior to their truncation, was also an end point of US 6 (which connects Provincetown, Massachusetts some 3,227 miles (5,193 km) to the east) and US 91.
In 1993, the circle was converted from an old-style traffic circle to a modern roundabout by the California Department of Transportation (Caltrans). This was the first such conversion in the United States. Yield signs replaced Stop signs, giving drivers inside the circle the right of way, which increased traffic flow efficiency. PCH (the main thoroughfare) was given an additional entry lane at both north and south bound routes. Also added were widened feeder lanes, and dedicated lanes for traffic traveling only 90 of the 360 degrees of the circle - the equivalent of a right turn at a traditional American traffic light. After the conversion, both the total auto accident and the injury rate significantly dropped, making the circle one of the safest statistically in the nation. The aforementioned modifications ran a cost of $350,000.
...
Wikipedia