andrewc

Are there any studies that show that 'overall' traffic reduction does not happen as a result of road closures? Or, contrariwise, that adding roads to a network reduces road use?

Here is a the introduction to the study (Generated Traffic and Induced Travel) below. Traffic engineers often compare traffic to a fluid, assuming that a certain volume must flow through the road system, but it is more appropriate to compare urban traffic to a gas that expands to fill available space (Jacobsen 1997). Traffic congestion tends to maintain equilibrium: traffic volumes increase to the point that congestion delays discourage additional peak-period vehicle trips. Expanding congested roads attracts latent demand, trips from other routes, times and modes, and encourage longer and more frequent travel. This is called generated traffic, referring to additional peak-period vehicle traffic on a particular road. This consists in part of induced travel, which refers to absolute increases in vehicle miles travel (VMT) compared with what would otherwise occur. https://www.researchgate.net/profile/Todd_Litman/publication/235360397_Generated_Traffic_and_Induced_Travel_Implications_for_Transport_Planning/links/5a69f90d4585154d15465728/Generated-Traffic-and-Induced-Travel-Implications-for-Transport-Planning.pdf

This is worth a read too. The effect of a road closure in New York. https://www.nytimes.com/2019/10/13/nyregion/14th-street-cars-banned.html

This makes interesting reading. A summary of 70 traffic studies and the average 'traffic evaporation' measured. https://www.onestreet.org/images/stories/Disappearing_traffic.pdf

This summary of the experience in Walthamstow might be worth a read. https://londonlivingstreets.com/2019/07/11/evaporating-traffic-impact-of-low-traffic-neighbourhoods-on-main-roads/

rahrahrah Wrote: ------------------------------------------------------- > Here?s some interesting reading > https://therantyhighwayman.blogspot.com/2020/08/ta > ckling-main-roads.html

The ideas around streets are changing. If the street is a living space where people can do a mixture of things it is no longer simply a highway with parking space. I know this subject is highly charged and I don't want to add fuel to the fire. But it is worth imagining the way streets could change. The idea of traffic 'evaporation' is well documented and worth believing in. https://londonlivingstreets.com/2019/07/11/evaporating-traffic-impact-of-low-traffic-neighbourhoods-on-main-roads/

This is interesting. The Braess Paradox, where extra roads increase journey time!

I was curious to find out if road closures had a positive or negative effect. I found this study but there may be others that contradict this one. https://www.nice.org.uk/guidance/ng90/evidence/transport-evidence-review-pdf-172342130581

New cars for old...more recent studies. https://www.carbonbrief.org/factcheck-how-electric-vehicles-help-to-tackle-climate-change

New car for old...a study. http://web.mit.edu/sloan-auto-lab/research/beforeh2/files/weiss_otr2020.pdf

Hi Rob, Is it possible to argue that the development proposal contravenes the sustainable requirement of the section quoted below taken from the design and access statement in the planning proposal? In other words the 'listing' itself contradicts the sustainable requirement. 3.0 Relevant Planning Policy National Level: The National Planning Policy Framework (NPPF) 2019 3.1 At paragraph 7 of the NPPF it states that: ?The purpose of the planning system is to contribute to the achievement of sustainable development.? It goes on at paragraph 10 to state that there should be a ?...presumption in favour of 1 sustainable development.? It then states at paragraph 38 it that: ?Decision- makers at every level should seek to approve applications for sustainable development where possible.?

It's today at 7.30pm

Great idea.

lbsmith73 Wrote: ------------------------------------------------------- > I think you are on to something there... Really I > am a car owner and to be honest all the traffic > made me change my behaviours. I now cycle the 9 > miles to work and it is quicker than driving and > the train. It keeps me in shape, saves on gym > fees, good for the environment and you only need a > bit of wet weather gear from time to time. Not to > mention it has saved me a fortune in fuel and rail > fares. I know it?s difficult but change is hard > and sometimes you have to look beyond your own > needs.

Flyer

This is the first Dulwich Net Zero Meeting. Please PM for a free invite to the Zoom meeting. Hopefully soon we can meet in real life. All welcome. Supporting, informing, encouraging Dulwich to go Net Zero A group that supports each other in dealing with the challenges of reducing fossil fuel dependence. Sharing ideas and information about reducing our carbon footprint.

I used to drive into central London to go to the theatre but its too much hassle now and I use the bus. I used to have my favourite routes and parking spaces which, year by year, got harder to use. I still own a car but use it less because the authorities have deliberately and consistently over many years made it less convenient. The privilege of using the car to get into town became the opposite, a pain in the arse. All over London, over many years, car use has become less convenient. I still own a car. I still like my car. I use it less.

It's weird to think that Leicester Square was once a roundabout.

Driving is convenient, which is why it is so popular. Making driving more difficult or expensive will reduce car use. Decision time!

There are a lot of measures that added together make it harder, more expensive and more hassle to drive. Congestion zone, lack of parking, parking fines, parking expenses, the new ULEZ and the journey obstacles like these road closures. I will keep my car but for the first I have been ( over the last year) imagining life without one and many others will be having similar thoughts. I have definitely used my car less because of the hassle etc. These street closures are part of the drip drip approach across the capital (not just in Dulwich) to car use reduction ( not necessarily scrappage). I like my car.

The goal is to reduce car use, I think most can agree on that. Unlike parking proposals which can be seen as a form of taxation these road closures clearly have only one intention. The trouble is that road closures effect different people in different ways and it is hard sometimes to see the bigger picture. And in the short term things get worse. It may be that the closures are misguided but the pain of it has a purpose.

I think what the council are trying to do is to frustrate the car user so that they use the car less. Over time the frustration turns to acceptance but only after a period of irritation. This is the case now when driving into town. Most of us have accepted that driving in to the centre is more hassle than its worth. It took a few years but in the end 'we' generally accept the change. This is what is happening locally. A period of pain and irritation which will result in more of us driving less.

Come to this talk at the East Dulwich Picture Apri 1 to share your heat saving story.

I have a terraced house in East Dulwich and am looking to insulate internally and externally. Any leads?