The National Transportation Safety Board sent letters to the federal agency that regulates bus and truck safety and the US Coast Guard citing accidents in which sleep apnea was a factor.

国家运输安全委员会致函联邦监管公共汽车和卡车安全以及美国海岸防卫队的机构，指出在交通意外中，睡眠呼吸暂停是一个因素。

youdao

The logistic safety mainly includes information safety, transportation safety, process safety and storage safety.

物流安全主要包括信息安全、运输安全、储存安全和加工安全。

youdao

The safety present situation of Normal Pressure Tank Body of Transportation Liquid Dangerous Goods was analyzed. Its basic requests of safety management were proposed also.

对汽车运输液体危险货物常压容器(罐)的安全现状进行了分析，并提出了安全管理工作的基本要求。

youdao

Transportation and law enforcement officials, safety activists and others will discuss how to deal with drivers who do other things as they drive.

VOA: special.2009.08.07

Transportation safety investigators held hearings this week into an accident that involved a major airline.

VOA: special.2009.06.13

To ease traffic congestion,Clark says, Houston transportation officials created special safety programs to reduce the number of accidents, which tie up traffic.

VOA: standard.2010.07.26

The National Transportation Safety Board (NTSB) is an independent federal agency charged with determining the probable cause of transportation accidents, promoting transportation safety, and assisting victims of transportation accidents and their families.

WHITEHOUSE: Drunk and Drugged Driving: Not an Acceptable Part of Life

The Transportation Safety Board is the Canadian equivalent of the United States' National Transportation Safety Board.

CNN: SHARE THIS

The FAA review is "very unusual" because the agency signed off on the aircraft's safety before it could fly commercially, said John Goglia, a former member of the National Transportation Safety Board.

CNN: Dreamliner safety review: What it means for fliers