Definition of blog. 1  1 computers : a website that contains online personal reflections, comments, and often hyperlinks, videos, and photographs provided by the writer; also : the contents of such a site.
It was developed by programmers from NYC Transit's Applications/Internet Technologies group, with the input of the Customer Services Division in Corporate Communications. Customer Services researches and responds to roughly 3,000 subway delay verification requests each month.
To reach their conclusion, analysts pulled data on delays and traffic speeds from loop detectors embedded in the freeway systems of the U.S.'s 100 biggest cities. In Los Angeles, they also used the systems that track travel times and delays on major surface streets.