(From the nytimes.com) The intersection of Interstate 405 and Sunset Boulevard, cutting through a prosperous stretch of rolling Los Angeles hills and estates, is notorious for its knots of traffic and frustrating delays. Traffic is so bad that it is hard to figure out how it could get any worse. Well, a $1.3 billion highway reconstruction project that began with a blizzard of alarming detour signs the other day is about to make it much worse. And that has put a large part of this city on edge.

The goal would appear simple and even admirable: to add a 10-mile car-pool lane on the 405, among the most reviled and traffic-snarled freeways in Los Angeles, as it approaches and rolls north over the Sepulveda Pass, connecting the city’s west side to the San Fernando Valley. But given the nature of this particular operation — basically open-heart surgery on the central circulatory system of this traffic-obsessed town — it is anything but.

What looms is an alleged three-year marathon of open and closed exit ramps, shut and narrowed lanes, banging overnight construction, detours sending traffic rumbling through some of the city’s most elegant neighborhoods, and a reminder of the price paid for the absence of meaningful public transit. It is all being chronicled in a stream of e-mail alerts and Twitter postings from transportation officials, who are doing what they can to keep everyone calm — with mixed success.

Read more here: New Stress Added to the Heart of Los Angeles Gridlock