In the city you can easily move by taxi and comfortable buses. The car is not recommended. Here, below, all the information to move in Abu Dhabi.

ON FOOT

On foot you move exclusively to the center. Otherwise, use of taxis or buses is recommended.
Attention above all to the heat that, during rush hour, can become really suffocating.

CAR

It is certainly not the ideal way to getting around Abu Dhabi. Like, for that matter, in the United Arab Emirates.
The problems of signage and the reckless driving of the Arabs, are the main reasons why it is not recommended for use. Furthermore, this is added to the traffic problem, particularly high at peak times. All the info to drive in the United Arab Emirates, from this link.

GETTING AROUND ABU DHABI BY TAXI

The preferred way to move in Abu Dhabi. Generally silver-colored, with the yellow symbol at the top, they are available in practically every area of ​​the city; in particular, in the most central places.
If at the top of the cab, they have red lights on, it means they are not available. The price starts from 6AED, to which must be added the rate for each kilometer traveled.

Taxis at the airport, are the most modern, and also the most expensive, with prices starting from 25AED, plus 1.60AED for each kilometer traveled.

BUS

In the city circulate 24 lines, active every day, including Sundays and holidays, from 05:30, up to 23:30. The frequencies of the races are attested, in general, around the 30 minutes. On some lines, however, buses run every 60′.
There are also three other Line, 022 (Al Maqta), 065 (Al Reem City Of Lights) and 067 (Al Reem Shams), with terminus for Al Marina, active 24 hours on 24, every day.

The X2, X3, X4, X5 express buses run a fast service to Al Maqta, to the bus interchange station.
There are, then, other lines with which you can move to Abu Dhabi, in the entire region or the international airport. Many vehicles, modern and comfortable, are equipped with Wi-Fi and low floor for people with reduced mobility.