The method developed to meet this need was the home-interview origin-destination survey. Household members were interviewed to obtain information about the number, purpose, mode, origin, and destination of all trips made on a particular day.

The method developed to meet this need was the home-interview origin-destination survey.
①このニーズに応えるために開発されたのが、家庭訪問による出発地・目的地（OD）調査であった。

Household members were interviewed to obtain information about the number, purpose, mode, origin, and destination of all trips made on a particular day.
②調査では、家族の構成員に対して、特定日における（行われた）すべてのトリップ（移動）について、その回数、目的、手段、出発地・到着地に関する情報が調べられた（聞き取られた）。

These urban travel surveys were used in the planning of highway facilities, particularly expressway systems, and in determining design features. The U.S. Bureau of Public Roads published the first, Manual of Procedures for Home Interview Traffic Studies, in 1944 (U.S. Dept. of Commerce, 1944).

These urban travel surveys were used in the planning of highway facilities, particularly expressway systems, and in determining design features.
③これらの都市交通調査(データ)は、道路設備、特に高速道路網の計画や、設計上の各種仕様の決定に用いられた（活用された）。

The U.S. Bureau of Public Roads published the first, Manual of Procedures for Home Interview Traffic Studies, in 1944 (U.S. Dept. of Commerce, 1944).
④道路局(BPR)は、1944年に最初の「家庭訪問交通調査（手順）マニュアル」を公表した。(U.S. Dept. of Commerce, 1944)