Cambridge 8 | Test 1 | Passage 2

Air Traffic Control in the USA

An accident that occurred in the skies over the Grand Canyon in 1956 resulted in the establishment of the Federal Aviation Administration (FAA) to regulate and oversee the operation of aircraft in the skies over the United States, which were becoming quite congested. The resulting structure of air traffic control has greatly increased the safety of flight in the United States, and similar air traffic control procedures are also in place over much of the rest of the world.

occur (verb) [intransitive]

/əˈkɜːr/

to happen

Three major events occurred in my life that year.

oversee (verb) [transitive]

/ˌoʊvərˈsiː/

to watch somebody/something and make sure that a job or an activity is done correctly

As marketing manager, her job is to oversee all the company's

congested (adjective)

/kənˈdʒestɪd/

crowded; full of traffic

The roads to Bordeaux were heavily congested.