Most cities today are spread very far out so that most people have to take some sort of vehicle in order to get to their destination. If I were to create my own city, I would:
-Place the town in close proximity so that people would be able to ride bikes to their destinations therefore already cutting down on carbon.
-I would require all citizens to place their laundry outside to dry instead of wasting electricity with dryers.
-I would limit the showers from 5-10 minutes to help cut down on water wasted. They would all be placed on water restrictions so our total area would help reduce the water consumption by a lot.
-We could also have to have a major law on littering around the areas.
-I would have one grocery store, and the only good inside would  those grown by the markets around the area transported in with either a green car (Tesla) or just biked in (I would not expect the population to be large). You would also have to make your own fabric bags so you would not have to ship over manufactured ones.
-Everyone would be required to make their own things and even if th ey wanted to grow their own food in mini gardens with natural soil and no added objects.
-They could also not raise livestock in their areas in case of pollution of the air.
-My city would be vegan, as the restriction of having less animals would mean less carbon dioxide in the air. There would be no need for dairy from cows and\or goats as dark greens contain calcium.
Source: http://www.vrg.org/nutrition/calcium.php
My city would basically be a replica of Singapore a low carbon producing area that is tightly compacted together. I also like the idea Singapore has to help reduce the carbon emissions by only having a limited amount of cars and the fact that you have to pay for your licence would also help cut down the emissions produced by cars.
Sources:
- http://www.mas.gov.sg/News-and-Publicat … ncing.aspx
- https://www.nccs.gov.sg/climate-change- … ns-profile
How would your city be planned?
Do you think it would be worth the energy and money to place metro trains throughout the city?
Also would the climate change the cities ways?

In your post, you mentioned how you wanted a smaller city, but then referenced how you wanted to make it similar to Singapore, which has a population of almost 6 million, (for perspective, LA has around 4 million people.) So, how would you try to make a larger city or a city with a larger population? How would the city bear with a rise in it's population due to immigration, either state to state or country to country? What would happen, hypothetically, if oil was found underneath your city, and suddenly everyone wants to dig it up and burn it?

Hi, I think your post is quite interesting. I was searching about cities in our world that were completely "went green". I've found some sort of project that is going on in the south of Arabia, near Abu Dhabi. I know that it could be very hard to make all the cities like that one, but it could be also one of the best idea since now. The city it's called Masdar City (this is the very cool website: (http://www.masdar.ae)  and, I guess, it's the most technological city that has ever been built (better to say that it's still under construction, but it seems something that will finish sooner or later) it has a very clever way of transportation, a city-cooling system, methods to recycle wastes and tons of solar panels. And it's seems very, very cool to live there.
If you don't like so much this idea of sustainable city there's another option: somewhere in the north of India there's a city that has reduced a lot its carbon footprint. The city is called Auroville (here's the website http://www.auroville.org) and their way of doing it it's not like Masdars way. They have just a  few money, and they cannot afford the latest technologies so they started to build their gardens, they are using solar kitchens, that have solar panels and electric motorbikes, they recycle water and they life in harmony with the wildlife and the nature. This is a very different way to stop carbon emissions. Auroville could be a place to start, especially for the poor countries.
Tell me which one you think could work better!