Opened to the general public this morning, the world's largest driverless metro system takes to the tracks in Dubai. <i>The National</i> followed the first day of the Dubai Metro with live updates of news, pictures and video from our reporters on the ground. And we found out whether the Metro is quicker than driving, taking a taxi or a bus when four of our Arts & Life team took to the streets in a race around Dubai. Read how the event unfolded below. You can still contact us on Twitter at <a href="http://www.twitter.com/TheNationalUAE/" target="_blank">http://www.twitter.com/TheNationalUAE/</a>. You can also send your mobile videos and images to +971 (0)50 106 3335 or email them to sendyournews@thenational.ae. <b>How to use the live blog</b> Click the "Play" icon to enter the live blog. Submit your name in the appropriate field. Type in your comment or link in the "chat" field and your message will be displayed in the live chat window. Please keep in mind that all comments are moderated.