The A and G Lines use GPS for their crossing gates, they claim that a new software patch and other improvements would resolve those issues and put the G line on schedule.

Denver's crossing gates have caused a series of headaches for the city’s transit system. Now the Regional Transportation District (RTD) says the problem is tied to blocked GPS signals. “The document said Denver’s rising skyline around Union Station regularly blocks GPS signals the system relies on to keep the University of Colorado A-Line running smoothly and safely,” John Aguilar writes for the Denver Post. RTD says they have a software patch to fix this issue that they can put into place quickly if the plan is approved at the federal level. “RTD says it is ready to open the long-delayed G-Line to Denver’s western suburbs in the first quarter of 2019 if the Federal Railroad Administration accepts its action plan,” Aguilar reports.
The use of GPS also features in the federally mandated safety feature known as positive train control (PTC). While operators do not currently need to employ PTC, the due date is coming up. RTD officials say they will be ready. Some observers have pointed out that many of the transit systems around the world are in cities with more tall buildings than Denver, without experiencing similar issues.
FULL STORY: Denver’s tall buildings partly to blame for A-Line, G-Line problems, RTD tells feds

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

USGS Water Science Centers Targeted for Closure
If their work is suspended, states could lose a valuable resource for monitoring, understanding, and managing water resources.

Congress Moves to End Reconnecting Communities and Related Grants
The House Transportation and Infrastructure Committee moved to rescind funding for the Neighborhood Equity and Access program, which funds highway removals, freeway caps, transit projects, pedestrian infrastructure, and more.

Poor Conditions in Mobile Home Parks Put Residents at Risk
Failing infrastructure, poor water and air quality, and predatory owners endanger the health of manufactured home residents, many of whom are elderly and low-income.

How Complete Streets Stands to Lose in the FY26 ‘Skinny Budget’
The President’s proposed budget could cut key resources for active transportation, public transit, and road safety programs.

Dairy Queen and Rural Third Places
Dozens of Dairy Queen restaurants across Texas are closing, taking a critical community space with them.
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.
City of Moorpark
City of Tustin
Tyler Technologies
City of Astoria
Transportation Research & Education Center (TREC) at Portland State University
Chaddick Institute at DePaul University
Regional Transportation Commission of Southern Nevada
Toledo-Lucas County Plan Commissions