Dick Spotswood: Planning fiasco to create Doyle traffic nightmare
Join the discussion below, or Read more at Marin Independent Journal.
#1 Aug 16, 2009
It's pretty sad how Caltrans goes about their work with the weakest "solutions" to the work they do in terms of mitigating congestion. I read at the Doyle Drive construction site
"If the roadway is not replaced and an earthquake or structural failure force the closure of Doyle Drive for even a short period of time, the North and East Bay areas would experience staggering congestion from rerouted trips and the regional transit and ferry systems would be greatly overburdened"
Uh, okay so if such a severe problem would occur due to an earthquake or structural failure, then isn't it obvious that the same "staggering congestion" would occur when they do this work?
It's like how the bay bridge is going to be closed for a six day stretch during Labor Day - but not just for one or two days causing major hassles for six days which I find crazy. Except it's worse because this is going to go on for years!
#2 Aug 16, 2009
"and out the 25th avenue gate"?
When I read the original IJ article on this topic BOTH detours for San Francisco local traffic returned folks back onto Doyle Drive at the bridge to complete their journey. The on ramp to be used is the one just after the 25th avenue exit.
#3 Aug 19, 2009
Doyle Drive itself isn't being closed except for one or two weekends in a few years. It is only a small handful of intra-San Francisco traffic that will be affected by the ramp closures. Because the intra San Francisco traffic will not be using Doyle anymore, Marin suburbanites utilizing San Francisco infrastructure will enjoy a less congested commute.
#4 Aug 20, 2009
Great article on the Doyle Drive "plan." After reading the articles in the paper concerning the proposal to rebuild Doyle Drive I am wondering if any alternatives were considered. I was stunned by the blunt comments of the GGTD engineer. But then the chaos will be terrific
If the current plans call for a massive traffic jam for 3 to 5 years while the present structure is demolished and a new one built, why not avoid such a catastrophe by simply rebuilding Doyle Drive in situ. Caltrans seems to never had considered this option. This was undertaken in Utah from 2000 to 2002 in bridges and connectors using carbon fiber reinforced polymers (CFRP) and other new technology.
This would be cheaper and produce less waste, since construction and
building produce 30% of all waste. Since no engineer can guarantee that
a major earthquake on the San Andreas or the Hayward fault will not
destroy any human structure, as seen in Kobe Japan (1995) with the most
advanced structural designs, shouldn't we invest wisely in a harden
structure that will save lives but conserve resources for future needs? Any chance this train wreck can be averted?
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