Dive summary:

• A manual is worth more if you can grab it when you need it, so the American Road and Transportation Builders Association has developed a version of the Manual on Uniform Traffic Control Devices that is accessible anywhere through Apple devices.
• There is also a version available through Amazon.com for other types of mobile devices.
• The Federal Highway Administration's guide covers the design, installation and maintenance of a wide range of traffic-control devices, and ARTBA said it was valuable for managers to have access to the manual in the field.

From the article:

One of the transportation industry’s most heavily utilized publications — the Manual on Uniform Traffic Control Devices (MUTCD) — is available for the first time on Apple mobile devices through the American Road & Transportation Builders Association (ARTBA). ...