They also encourage people to work from home on a regular basis and use mass transit when they do commute.

VOA: standard.2010.07.26

In the wake of the bombings, cities in the United States and Europe boosted security in and around their mass transit systems.

VOA: standard.2010.03.30

Most mass transit has been shut down and many highways are closed by the fighting.

VOA: standard.2010.05.15

O'Hanlon says there should be more permanent changes in mass transit security.

VOA: standard.2010.03.30

Eighty billion dollars of that total was to be pumped into the U.S.economy to promote development of renewable energy, urban mass transit, high-speed rail systems and clean energy jobs.

VOA: standard.2010.02.25