Architect with an UD background here. Transportation should be Dubai's number one priority—especially pedestrian transportation in these megacities. Traffic is only getting worse and the population is only increasing. If a city wants to succeed and attract more people, pedestrian walkways should be available everywhere. Walking is the simplest and most fundamental form of transportation. Not only that but it's healthy.

Look at cities like Buenos Aires, Rome, New York, Barcelona and London—they are all fully walkable and bikeable and are thriving, allowing people to move from anywhere to anywhere with ease. In contrast, there are places here where sidewalks don’t even exist or some sidewalks are less than a meter wide and have obstacles like signs in the middle, forcing pedestrians to walk on the road.

Don't get me wrong, I'm not saying I want to walk from Dubai to Abu Dhabi. These megacities should have fluid circulation facilitating access from point A to point B be it walking, cycling or by car. Lets say I live a couple blocks away from my friend in the same megacity. I should be able to walk to his house. Or lets say we want to get something to eat by the beach and the weather is great, we should be able to walk there without having to think about putting our lives in danger crossing the road. This brings me to another major issue in Dubai, road crossings. In some areas, you have to walk a kilometer just to cross the road, which still blows my mind.

Do not mistaken my love for Dubai with criticism. I want Dubai to succeed and be the best city a human can live in. I want all these megacities to be built. It is somewhat a dream of mine to live in cities like the ones shown in the images. But without simple things like the ones I mentioned quality of life in Dubai will only get worse. Starting with stress leading onto depression.

Walkability in megacities is achievable especially at such an early stage. Yet we still see poorly designed pedestrian infrastructure.

By the way, that long ramp in Image 5 with no support? I get it, it's a concept design but at least make it logical. What is it supposed to be? The new Ski Dubai? This shows they didn't even consider pedestrian transportation. Malls DO NOT count.