Darb is Abu Dhabi’s official electronic toll system designed to manage traffic flow during busy commuting hours. Using automatic number plate recognition, the system charges drivers AED 4 each time they pass through a toll gate during peak hours. No tag or sticker is required—fees are deducted directly from the registered Darb wallet.Peak charges apply only from 7–9 AM and 3–7 PM, while off-peak hours, Sundays, and public holidays remain free. There are no daily or monthly caps, meaning frequent commuters may pay more depending on how often they cross toll gates.Toll gates are placed at major bridges such as Sheikh Zayed Bridge, Al Maqtaa Bridge, Sheikh Khalifa bin Zayed Bridge, and Mussafah Bridge. Vehicle registration is mandatory, and certain categories—including public buses, motorcycles, and emergency vehicles—are exempt.Understanding Darb costs helps residents and newcomers plan travel efficiently and avoid unnecessary charges while living or commuting in Abu Dhabi.