Desk research against primary sources. Figures are traced to the issuing UAE authority and linked on the page.
The 30–60 minute commute range for Arabian Ranches, Mira and Mudon is wide because it depends heavily on which direction you are travelling and at what time — the same route can sit at either end of that range depending on whether you are going against or with the main flow of traffic.
Al Barsha South and Damac Hills sit slightly differently on this trade-off, so it is worth timing the actual drive at the hour you would really be making it rather than trusting a single quoted range for the whole area. A quiet evening and a punishing peak-hour commute can both be true of the same villa, and only one of them shows up on a relaxed viewing.