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.
Round-trip delay time. In telecommunications, the round-trip delay time (RTD) or round-trip time (RTT) is the length of time it takes for a signal to be sent plus the length of time it takes for an acknowledgment of that signal to be received. This time delay therefore consists of the propagation times between the two points of a signal.