Each metro line usually has its own color on the map. For obvious reasons, these colors should be maximally different. Suppose a new metro line is built. We now explain a strategy to choose the color ...

CHICAGO (CBS)-- Wednesday is red-letter day at the CTA - 25 years since the CTA first began using color-coded route names on the 'L.' It's as simple as black and white: the 'L' is part of the fabric ...

In this post, we will show you how to change the Gridline color in Excel. Gridlines are the lightly visible lines that appear around cells in a worksheet to differentiate them and make the data easier ...

People check out the newly opened Second Avenue Subway 86th Street station in New York on Jan. 1 in New York City. (AP Photo/Craig Ruttle) This is your first of three free stories this month. Become a ...

With eight more transit lines set to be operational in less than 10 years, the Los Angeles County Metropolitan Transportation Authority, faced with using subtle color shades such as olive, pink and ...