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Some claim that roundabouts are much safer than current highway designs and push that we need them and bike lanes on Trinity Drive.
I analyzed the traffic-load impact on the entire town, not just Trinity Drive, with regard to traffic redistribution and safety, if Trinity is changed from four to two lanes, using information I requested of and obtained from the Los Alamos County traffic engineer and police department or drew from the CDM study.
My analysis can be found at: www.swcp.com/~jmw-mcw/LATrafficSafety.htm.
A synopsis of the analysis is that traffic flow data for east side traffic into Los Alamos in 2010 was 63 percent flowed on to Trinity, 35 percent on to Central Avenue and three percent on to Canyon Road.
A significant Trinity-DP Road load means that any decrease in Trinity traffic will have to be diverted before this intersection.
Traffic accident data for the last five years show that both major routes through town - Trinity Drive and Central-Canyon - have comparable numbers and thus do not indicate that one is more dangerous than the other.
There has been one fatality in the last 20 years and one hit bicyclist, both at the Diamond Drive intersection, in the last five years for each route.
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