In 1955, the Chicago Area Transportation Study (CATS) began under the direction of Dr. J. Douglas Carroll Jr. and set the standard for future urban transportation studies. The lessons learned in Detroit were applied in Chicago, but with greater sophistication. The CATS used the basic six-step procedure pioneered in Detroit: data collection, forecasts, goal formulation, preparation of network proposals, testing of proposals, and evaluation of proposals.

In 1955, the Chicago Area Transportation Study (CATS) began under the direction of Dr. J. Douglas Carroll Jr. and set the standard for future urban transportation studies.
①1955年、シカゴ地域交通調査（CATS）が、Dr. J. Douglas Carroll Jr.の指示のもとで始まり、将来の都市交通調査の基準を定めた。

The lessons learned in Detroit were applied in Chicago, but with greater sophistication.
②デトロイトでの教訓はシカゴで活かされたが、より複雑化した。

The CATS used the basic six-step procedure pioneered in Detroit: data collection, forecasts, goal formulation, preparation of network proposals, testing of proposals, and evaluation of proposals.
③CATSはデトロイトの調査で、先駆けとなった基本の6段階過程(データ収集、予測、目標設定、ネットワーク計画の準備と分析、評価)を用いた。

Transportation networks were developed to serve travel generated by projected land-use patterns. They were tested using systems analysis, considering the effect of each facility on other facilities in the network.  Networks were evaluated based on economic efficiency-the maximum amount of travel carried at the least cost.

Transportation networks were developed to serve travel generated by projected land-use patterns.
④交通網は、計画された土地利用形態による発生交通を捌けるために計画された。

They were tested using systems analysis, considering the effect of each facility on other facilities in the network.
⑤それらは、ネットワーク上の他の各施設の影響も配慮しながら、システム解析を用いて分析された。

Networks were evaluated based on economic efficiency-the maximum amount of travel carried at the least cost.
⑥ネットワークは、最小費用で最大の交通量を捌けるという効率性に基づいて評価された。