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• "Hi Kate - thanks for taking up my question. I am living in Shanghai at the moment and I realize that this is obviously not a representative city because of its size and relative wealth but it does..."

  2 June 2012 on Socio-Economic implications of Sustainable Cities on the Urban Poor.

• "Hi Patrick - greatly agree with you. Virtual public spaces are a poor alternative. Do you have some good examples (photo's) of great public spaces in African cities, or elsewhere?"

  28 May 2012 on Quality of Public Spaces

• "Thanks for the clarifications - you mentioned in your original posting that this might be good for slum areas. Are you recommending this because of cost reasons? Or are there other reasons why not..."

  27 May 2012 on Eco San( Ecological Sanitation) , Is it the best alternative for...

• "Hi Pradip - see attached picture of the e-taxis in Xian, China where these are operating on a large scale already (close to 10,000) I believe. You can find different forms of these in different..."

  27 May 2012 on Changing the Menace of Motorbikes (Okada) in urban Centers, or should...

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  27 May 2012 on Changing the Menace of Motorbikes (Okada) in urban Centers, or should...

• "Jinadu - good points! I think that it is important to remember that motor cycles take up far less road space than cars. Talking about banning motor cycles somehow implies that a car is a superior..."

  26 May 2012 on Changing the Menace of Motorbikes (Okada) in urban Centers, or should...

• "Yes Piyush - I would expect that new topics can be added"

  26 May 2012 on What Makes a City Sustainable or is it just Sexy to use Sustainable !

• "Dear Roseana - the request to all people is to make your comments in English, could you be so kind to translate yours?"

  25 May 2012 on Technological solutions to transport

• "Hi Carlos - after looking at them tell us what you would tell shopkeepers who are concerned about impact on their business."

  23 May 2012 on Pedestrian zones/streets. A menace to retailers or a benefit for the...

• "Dear Ayetimiyi, why don't you kick off the discussion by sharing with what the greatest pollution is on your city and then maybe we can have a discussion on what the control measures could be for..."

  23 May 2012 on Pollution Control

• "Hi Carlos - http://en.wikipedia.org/wiki/Pedestrian_zone has quite a lot of information on this which might help to support discussion on this topic. "

  23 May 2012 on Pedestrian zones/streets. A menace to retailers or a benefit for the...

• "Dear Mekonen, not all people in the discussion might be familiar with the concept of ecological sanitation. Can you explain a bit more. It might also be good to ask some more specific questions that..."

  23 May 2012 on Eco San( Ecological Sanitation) , Is it the best alternative for...

• "Carlos, I have my doubts on that - I think that "sustainable" is likely to have more staying power than "low carbon". Sustainable development goes back right to the 1972 Stockholm Conference on..."

  22 May 2012 on What Makes a City Sustainable or is it just Sexy to use Sustainable !

• "Hi Adenle - I have changed the title of your original posting by adding the question whether motor bikes should be banned. Let's see what the others have to say on this. "

  22 May 2012 on Changing the Menace of Motorbikes (Okada) in urban Centers, or should...

• "Hi Adenle - thanks for starting this topic. Some people might argue that by making transport by car more attractive that this will only increase the number of people driving. So rather than focusing..."

  22 May 2012 on Road Design and Management

• "Hassaan, thanks for another inspiring topic - I hope that we can agree that we will focus on sustainability considerations in determining our favorite city."

  22 May 2012 on Your favourite city

• "Tasmi, great post. You will be surprised that even in a so called modern city like Shanghai we have thousands of non-motorized freight and logistics entrepreneurs who operate their one vehicle fleet."

  22 May 2012 on The contributions of informal workers through low energy conveyance...

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  22 May 2012 on The contributions of informal workers through low energy conveyance...

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  22 May 2012 on The contributions of informal workers through low energy conveyance...

• likes a topic: The contributions of informal workers through low energy conveyance...

  22 May 2012

• "Dear Alemfack - that is an interesting question! Do you have some examples of such cities and the type of industries they have. What I have seen here in China is an interesting pattern. Light..."

  22 May 2012 on the dilemma of the industry in central urban

• "Hi Sophie - can you clarify what you mean by light electric vehicles?"

  21 May 2012 on Street-space for non-motorized and light electric vehicles

• "Hi Sophie, I live in Shanghai where there are literally millions of electric two wheelers. They are parked all over the place but mostly on the side walks. They use the bicycle lanes where these are..."

  21 May 2012 on Street-space for non-motorized and light electric vehicles

• "Dear Sunday - thanks for this comment. You wrote: "if the poor are not considered in the planning and implementation of sustainable cities then we could say the realism of these plans may be yet..."

  21 May 2012 on Socio-Economic implications of Sustainable Cities on the Urban Poor.

• "Hi Bahati - can you tell us a bit more on what you are thinking of when you talk about the need for architects, city planners and designers to adapt to the conditions of warm humid tropics. What are..."

  21 May 2012 on Creating Awareness on Adaptation of High Tech (Green & Low Energy)...

• "Hi Bahati - see attached picture from Singapore: http://www.thejakartaglobe.com/international/orchard-road-is-worlds-top-shopping-street-survey/490274. This shows that you can have walking in hot..."

  21 May 2012 on Transformation of East African Concrete Jungle Cities to Green Jungle...

• likes a topic: Optimists or Pessimists - Stock taking of sustainable cities dialog -...

  19 May 2012

• published a topic: Optimists or Pessimists - Stock taking of sustainable cities dialog - Weekend poll (2)

  19 May 2012

• "Hi jeff - I was looking for a nice picture online to illustrate your argument which I think is a genuine one but could not find a better one than:..."

  19 May 2012 on Classical Modernist Planning and the menace of Automobile Dependence...

• "Dear Shrya - let me be the first one to vote :-). I think that you are making an important point here which is increasingly being discussed also in the sustainable transport community. How should..."

  19 May 2012 on Urban Public Health

• "Hi Sunny - yes it does. There is an excellent initiative of cities in Europe which are involved in a structured exchange program funded by the EU. The name is CIVITAS - see..."

  18 May 2012 on Applying concepts from developed to developing countries

• "Hi Alemfack - take a look at http://en.wikipedia.org/wiki/Bus_rapid_transit. This should give you a good overview. Let us know if you have more questions."

  18 May 2012 on Encourage Public Transport such as Bus to Reduce Emissions of...

• "Hi Rumbidzavi - this is a refreshing post which does not blame all on the government and the politicians. Can you clarify the "some extent" in which urban planners and engineers have gone wrong?"

  18 May 2012 on what makes a stupid city?

• "Hi Carlos - see attached website: http://amsterdamcyclechic.wordpress.com/2012/04/24/cyclist-of-the-month-the-resigned-prime-minister/ which declared the former prime minister of the Netherlands..."

  18 May 2012 on Push and/or pull? (a chicken or egg question)

• "The British Medical Journal published a paper about the effect of 20 mph traffic zones on road injuries in London. Results: The introduction of 20 mph zones was associated with a 41.9% (95%..."

  18 May 2012 on 30 km/h Zones, do they really work?

• "Hi Denise, can you tell us a bit more on how long the network has been in existence and what some of its initial successes and challenges has been. You mention that the project is focused on..."

  18 May 2012 on selective collection, recycling, residue and poverty minimization.

• likes a topic: Invitation to give your vote on sustainable energy recommendations...

  18 May 2012

• published a topic: Invitation to give your vote on sustainable energy recommendations for the Rio+20 Conference

  18 May 2012

• likes a topic: Bicycle Couriers in Brussels - good idea/bad idea?

  18 May 2012

• "Hi Sherif - great picture - what is the source of the picture - would be good if you could share a "nice" traffic congestion picture from Nigeria. I came across a nice IBM video..."

  17 May 2012 on Classical Modernist Planning and the menace of Automobile Dependence...

• "Dear Agbaje - i understand from your post that you believe that high income earners are not complying with planning regulations. Do you think that making it easier to comply that this will be enough..."

  17 May 2012 on SUSTAINABLE CITIES

• "Dear Wasif - My suggestion is not to include your phone number in posting. The intention is that this is an on-line dialog. Let me know whether you agree to this and I can help in removing it. ..."

  16 May 2012 on Planning for develop the sustainable cities

• "Hi - could you also explain the word ambouteillages which you used in your topic heading?"

  16 May 2012 on Encourage Public Transport such as Bus to Reduce Emissions of...

• "Dear Martha, thanks for sharing this. Can you explain in some more detail the urban linkage and the linkage with the two key themes of this dialog: mobility and energy use. Many people associate..."

  16 May 2012 on Towards a UNESCO International Landscape Convention ILC and the...

• "Dear Carlos - the current TDM measures in Beijing, to limit the number of new cars that can enter the fleet each year to 240,000 was introduced in 2011, well after the Olympics. FYI, the number of..."

  16 May 2012 on Push and/or pull? (a chicken or egg question)

• "Hi Sunny - I am the moderator so I should be careful with having opinions :-). However - since you asked - it is very much a class issue. Since most people who cycle in India are of a different..."

  15 May 2012 on What is the future of cycling?

• published a topic: Bicycle Couriers in Brussels - good idea/bad idea?

  15 May 2012

• likes a topic: Push and/or pull? (a chicken or egg question)

  15 May 2012

• "Hi Carlos - Shanghai and Singapore are cities where TDM measures have gone hand in hand with the development and improvement of public transport. Beijing on the other hand only introduced TDM..."

  15 May 2012 on Push and/or pull? (a chicken or egg question)

• "See http://www.worldurbanforum.org/productive-cities/can-agriculture-be-an-urban-job-creator. I suggest that you take a look and see whether this discussion is of interest. If so, we can see how to..."

  15 May 2012 on How to feed growing cities?

• "Dear Laura - there was also an interesting discussion on this in the sustainable cities e-dialog: http://www.worldurbanforum.org/sustainable-cities/how-to-feed-growing-cities. It might be good to..."

  15 May 2012 on Can agriculture be an urban job creator?

• "Steve- thanks - I agree that it would be best to have the discussion on unemployment in the "Productive Cities" e-dialog. Sylvester are you OK with this, or did you have a specific reason for..."

  15 May 2012 on Unemployment versus Development

• "Hi Fazal - is it possible to share some pictures, or even better a video? It is quite easy to upload here on the site. Let us know if you run into problems."

  14 May 2012 on Green housing for sustainable cities!

• "Piyush - interesting point, Bus Rapid Transit is to a large extent a solution from developing countries (Curitiba) originally and which is now being used as well in "developed" world. Other example..."

  14 May 2012 on Applying concepts from developed to developing countries

• "Dear Diriyai and Hassaan - Interesting that you are putting the blame so squarely on corruption and politics. The interesting thing seems to be that if you ask what made Bogota and Curitiba work that..."

  13 May 2012 on what makes a stupid city?

• "Safira - thanks for your first insightful comment, look forward to many more. I was in Sao Paolo 2 years ago and it does seem that the city has a big challenge ahead of it. You mention the obstacles..."

  12 May 2012 on First Weekend Poll-Discussion: Metro's versus Busses to improve urban...

• "Hi Sunny - i like your emphasis on "no obstructions". I came across great you tube http://www.youtube.com/watch?v=Hr7LqHAoKqE which describes some of the problems that might occur if you build cycle..."

  12 May 2012 on What is the future of cycling?

• "Hi Hassaan - see video http://www.youtube.com/watch?v=i2nOHTc4qDM&feature=related on how to move from stupid to smart."

  12 May 2012 on what makes a stupid city?

• "It might be of interest to take a look at Enrique Penalosa talking about this topic http://www.youtube.com/watch?v=K6KCcyNARNc"

  12 May 2012 on JAM FREE CITIES

• "For those of you who are not familiar with the Okada system in Lagos you can take a look at http://pmnewsnigeria.com/2011/12/02/curbing-the-okada-menace-in-lagos/. It is interesting though - I am in..."

  12 May 2012 on Changing the Menace of Motorbikes (Okada) in urban Centers, or should...

• "dear peter - you mention that the options are to restrictive. Which option(s) would you like to see added? Subways are expensive but we can see that an increasing number of Chinese and Indian cities..."

  11 May 2012 on First Weekend Poll-Discussion: Metro's versus Busses to improve urban...

• "hi sunny - i have adjusted the poll - hope that this makes it more clear. Look forward to your vote"

  11 May 2012 on First Weekend Poll-Discussion: Metro's versus Busses to improve urban...

• likes a topic: First Weekend Poll-Discussion: Metro's versus Busses to improve urban...

  11 May 2012

• published a topic: First Weekend Poll-Discussion: Metro's versus Busses to improve urban transport

  11 May 2012

• "I live in Shanghai where they have a similar system for the last 15 years. The auction price is much cheaper though than in Singapore where the price is $50,000. (Shanghai is now $ 10,000)."

  10 May 2012 on JAM FREE CITIES

• "Hi Parul - can you share a link to the study?"

  10 May 2012 on Urban Environmental Stress

• "Hi Sunny - good question - what would you like to see happen in your city so that you would cycle more.?"

  10 May 2012 on What is the future of cycling?

• "Dear Naimbaye - is it possible to make your posting in English? You could make use of google translate to do so. Carlos and I will be happy to help out if needed."

  10 May 2012 on Urban Regeneration plans and mixed use developments

• "Dear Clarence - it would be good if you could share the source of statements on costs of PRT and that it would not require subsidies. I must say that I find this hard to believe, especially the..."

  9 May 2012 on Mobility Solutions to reduce Urban Poverty

• "Hassaan - you raised the question but did not answer the question for your own city. What do you think?"

  9 May 2012 on what makes a stupid city?

• "Matthew - do you live yourself in a "green" house? If yes - tell us about it and if not (yet), why not? "

  9 May 2012 on Green housing for sustainable cities!

• "Margaret, can you give a bit more background on your suggestion? Why are you proposing to replace public vehicles with electronic trains? Why not replace private vehicles?"

  9 May 2012 on JAM FREE CITIES

• "Dear Maartje, there is already a topic on urban farming. My suggestion would be to continue the discussion there. If you agree can you shift your question to that topic so that we have a more..."

  9 May 2012 on How to feed growing cities?

• "Yvonne - i think that this is very much a niche solution which in developed world might have some impact but it is not of real relevance to developing cities except to a very small group. The danger..."

  9 May 2012 on re:route - seducing urbanites to leave their car at home

• "Dear Andre - thanks for your contribution - the purpose of the e-dialog is to stimulate discussion. This might be more easily accomplished by shorter posts. Could you summarize your post in about 2..."

  8 May 2012 on Civil Society, Economic Powers and Quality of Life: An Ecosystemic...

• likes a topic: Classical Modernist Planning and the menace of Automobile Dependence...

  8 May 2012

• published a topic: Guidelines for Sustainable Cities e-Dialog

  5 May 2012