Unlike previous methods of analysis, which only measured construction, right-of-way, and maintenance costs, the manual included the costs to the user of the highway as a necessary and integral part of the economic analysis. Up to the date of this publication, no data existed to perform such an analysis.

Unlike previous methods of analysis, which only measured construction, right-of-way, and maintenance costs, the manual included the costs to the user of the highway as a necessary and integral part of the economic analysis.
③建設費、用地取得費、および維持管理費のみを計上していた従来の分析手法と異なり、このマニュアルでは、経済分析における必要不可欠な要素として、道路利用者が負担する費用も含まれていた。

Up to the date of this publication, no data existed to perform such an analysis.
④このマニュアルの公刊まで、そのような分析を行うために必要なデータは存在していなかった。

The manual defined the benefit-to-cost ratio as the difference in road user costs (between alternate routes) divided by the difference in costs. Road user costs included fuel, other operating costs (i.e., oil, tires, maintenance, depreciation), time value, comfort and convenience, vehicle ownership costs, and safety.

The manual defined the benefit-to-cost ratio as the difference in road user costs (between alternate routes) divided by the difference in costs.
①そのマニュアルでは、費用対効果比（効果対コスト比）を、代替ルート間の道路利用者費用の差を全体の費用差で割ったものとして定義していた。


Road user costs included fuel, other operating costs (i.e., oil, tires, maintenance, depreciation), time value, comfort and convenience, vehicle ownership costs, and safety.
②道路利用者の費用には、燃料費、その他の運行費用（すなわち、オイル、タイヤ、メンテナンス、減価償却）、時間価値、快適性と利便性、車両維持費（車輌本体の価格、登録料、保険料、道路税、燃料費など）、そして安全性が含まれていた。