A post on the iStrategyLabs website describes some of the software and hardware requirements for building signs that display the arrival and departure of transit in your area.
The blog post describes the relatively simple system requirements for a real-time transit display in the office of iStrategyLabs in Washington D.C.: "The first step in building Transit [the display] was choosing the hardware. I decided to go with six LED matrices that provided a similar aesthetic to the real metro signs, one Arduino Mega to power the LEDs, and an Electric Imp to collect the desired data."
After selecting the hardware, all that was left was to decide how much information to display, in this case: "the next four trains arriving at the Dupont Circle metro, how many Capital Bikeshare bikes were available at the Dupont station, and the current temperature for Washington, DC."
Who else wants one?
FULL STORY: Meet Transit, The Latest In Commuter Technology

Planetizen Federal Action Tracker
A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

Congressman Proposes Bill to Rename DC Metro “Trump Train”
The Make Autorail Great Again Act would withhold federal funding to the system until the Washington Metropolitan Area Transit Authority (WMATA), rebrands as the Washington Metropolitan Authority for Greater Access (WMAGA).

The Simple Legislative Tool Transforming Vacant Downtowns
In California, Michigan and Georgia, an easy win is bringing dollars — and delight — back to city centers.

Albuquerque’s Microtransit: A Planner’s Answer to Food Access Gaps
New microtransit vans in Albuquerque aim to close food access gaps by linking low-income areas to grocery stores, cutting travel times by 30 percent and offering planners a scalable model for equity-focused transit.

This City Will Pay You to Meet Your Neighbors
A North Kansas City grant program offers up to $400 for residents to throw neighborhood block parties.

Commentary: Our Silence Will Not Protect Us
Keeping our heads down and our language inoffensive is not the right response to the times we’re in. Solidarity and courage is.
Urban Design for Planners 1: Software Tools
This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.
Planning for Universal Design
Learn the tools for implementing Universal Design in planning regulations.
Smith Gee Studio
City of Charlotte
City of Camden Redevelopment Agency
City of Astoria
Transportation Research & Education Center (TREC) at Portland State University
US High Speed Rail Association
City of Camden Redevelopment Agency
Municipality of Princeton (NJ)