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Ladera: Green bike lanes coming to Alpine Road

Original post made on Jul 22, 2013

Green-colored pavement is coming to bike lanes along the sides of Alpine Road as they pass under Interstate 280 just east of Ladera. And two-color bike-lane patterns will be at the freeway entrance and exit ramps to indicate "conflict zones," an engineer for county Public Works told the Almanac.

Read the full story here Web Link posted Monday, July 22, 2013, 12:32 AM

Comments (14)

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Posted by John
a resident of Woodside: other
on Jul 22, 2013 at 12:39 pm

Whew. Thousands of cyclists pass through this intersection every day, year round. Thank you Corrine and SM County for finding a way forward which meets the twin and contradictory goals of 1) moving maximum vehicles/hour through the intersection, and b) making it safe(r) for the thousands of cyclists who go through that intersection daily.


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Posted by Terry
a resident of Portola Valley: Central Portola Valley
on Jul 22, 2013 at 1:23 pm


Has anyone looked closely at the photo included in the article? One of the two cyclist is not even riding in the green-colored bike lane. I think this is telling. . .


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Posted by prinzrob
a resident of another community
on Jul 22, 2013 at 2:07 pm

Terry, the California Vehicle Code allows cyclists to leave a bike lane when approaching any area where a right turn is allowed, like at the intersection in the photo. Therefore both cyclists pictured are riding completely within the law.

Bike lanes are typically designed to keep drivers from encroaching dangerously into a cyclist's space, but not vice versa. There are plenty of reasons why a cyclist might want or need to leave a bike lane to remain safe, which are all detailed in the vehicle code.


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Posted by Peter Carpenter
a resident of Atherton: Lindenwood
on Jul 22, 2013 at 2:22 pm

Peter Carpenter is a registered user.

"Bike lanes are typically designed to keep drivers from encroaching dangerously into a cyclist's space, but not vice versa. "

What is legal and what is safe are two entirely different concepts. Mixing bicyclists with automobiles and trucks may well be legal but it is stupid. Thinking that green lines will protect you from a 4-10 ten vehicle is wishful thinking. Sensible European countries have long ago installed parallel but separate pedestrian walkways, bike paths and motor vehicle road.


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Posted by Donald
a resident of another community
on Jul 22, 2013 at 3:55 pm

Peter, those same sensible countries have separate traffic lights for bikes to eliminate the conflicts that arise from having separated paths, a feature that reduces intersection capacity. These countries also have very different laws, with much stricter eligibility requirements for drivers and much different liability laws that put more burden on the car drivers to be safe around bicyclists. If we want to copy their success we need to incorporate ALL of the items that contribute, not pick a single one out of the mix.


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Posted by Doanld
a resident of another community
on Jul 22, 2013 at 3:57 pm

If you want to see the chaos and danger that results from installing separated bike paths without separate signal, see this video from Washington, DC.
Web Link

This improvement to Alpine is welcome, although it does not solve all of the problems there.


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Posted by Joseph Baloney
a resident of Menlo Park: Allied Arts/Stanford Park
on Jul 22, 2013 at 4:07 pm

"What is legal and what is safe are two entirely different concepts."

Holy &$@$! Is this the real Peter Carpenter admitting that life exists beyond what is written in legal code. I've read a bunch of posts about developments in the area and all you ever do is quote the code and say "It's allowed".

Guess what. Riding outside of the bike lane is allowed. By written law. CVC 21208, I believe, if you want to look it up.


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Posted by Peter Carpenter
a resident of Atherton: Lindenwood
on Jul 22, 2013 at 4:12 pm

Peter Carpenter is a registered user.

"Guess what. Riding outside of the bike lane is allowed."

What is legal and what is safe are two entirely different concepts. Mixing bicyclists with automobiles and trucks may well be legal but it is stupid. What is it about these statements that Baloney does not understand?


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Posted by Joseph Baloney
a resident of Menlo Park: Allied Arts/Stanford Park
on Jul 22, 2013 at 4:40 pm

"What is it about these statements that Baloney does not understand?"

I understand them perfectly, including the fact the "stupid" part is only your opinion.

As I said, I was stunned that you recognized that there is life beyond that defined in legal code. For some reason your opinion on cycling in traffic (which I'm guessing you don't do) is to be valued, but resident's opinion on development in the neighborhoods in which they live are irrelevant.

That, I don't understand.


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Posted by Peter Carpenter
a resident of Atherton: Lindenwood
on Jul 22, 2013 at 4:51 pm

Peter Carpenter is a registered user.

Baloney - you confuse a situation wherein stupid and dangerous behavior is allowed by the law with one where opinions as to what the laws permits are not determinative.


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Posted by Chris
a resident of Portola Valley: Ladera
on Jul 22, 2013 at 5:48 pm

I can only hope that this additional improvement to the bike lanes is effective. I'm curious, however, how much of the cost will be paid for those who actually use the bike lanes. Bike lanes are expensive, and so, just like roads, should be financially supported by the people who use them--cyclists.

I think that given the increasing demand by cyclists, cyclists should start paying registration fees, be covered by insurance, and pass tests.


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Posted by Menlo Voter
a resident of Menlo Park: other
on Jul 22, 2013 at 7:23 pm

Don't hold your breath Chris.


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Posted by Donald
a resident of another community
on Jul 22, 2013 at 9:02 pm

All attempts to register and license bicyclists have failed because of 2 issues 1) it would cost far to manage the program than it would bring in revenue, 2) nobody has figured out how to deal with children without making the regulations ridiculously complicated. The Measure A money comes from sales taxes, which are paid for by everyone in the County. Most local roads work is funded by federal funds that come from general funds paid by all taxpayers. Considering that bicyclists cause negligible wear and tear on roads, they are paying more than their share.

In this country roads are not funded on a pay-as-you-go basis. Roads are built and maintained as a general good and are paid for by everyone. All taxpayers pay for the multi-million freeway projects whether they use them or not. You and I are paying for freeways in other states that we may never even see, and bicyclists are paying for the new lanes on 101 even though they are not allowed to use them. You, in turn, pay for bike lanes that you may not use, but you are paying a lot less for those bike lanes than the bicyclists are paying for the freeways.


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Posted by Herb B
a resident of Menlo Park: The Willows
on Jul 23, 2013 at 8:25 am

Chris said bike lanes are expensive. Compared to what? Bike lanes are the cheapest road infrastructure that can be built, way cheaper per mile than freeways or even city streets. Bikes are given a narrow sliver of road that gets used by 200 lb vehicles. Cars are given a wide lane that gets beat up by multi-ton vehicles. Which one costs more?


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