A sinkhole on Samsen Road in central Bangkok exposed tunnels under construction for the Purple Line metro extension on Sept.

The California High-Speed Rail Authority is suing the U.S. Dept. of Transportation to recover terminated grant funds.

Each of the Mountain States and Southwest awardees will be featured in the March issue of the magazine, detailing their successes and careers so far.

The connector should offer two-way lanes for bikers and walkers.