The golden age of road demand modeling began in the 1950s and flourished in the 1960s in the face of major road construction needs. These macro models, as well as the econometrics and the data to be processed, were provided mainly by engineers. A division of tasks can be observed between the engineers in charge of estimating the flows within the network and the transport economists in charge of managing these flows once they are on the road network. Yet the inability to explain their decision-making processes and individual drives gave some room to economists to introduce economic analysis, so as to better understand individual or collective decisions between transport alternatives. Economists, in particular Daniel McFadden, began to offer methods to improve the measure of utility linked to transport and to inform the engineering approach. This paper explores the challenges to the boundaries between economics and engineering in road demand analysis.

中文翻译：

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经济学对工程的渗透：麦克法登和道路需求估算的转变

道路需求建模的黄金时代始于 1950 年代，并在 1960 年代面对主要的道路建设需求而蓬勃发展。这些宏观模型，以及计量经济学和要处理的数据，主要由工程师提供。可以观察到负责估算网络内流量的工程师和负责管理这些流量的交通经济学家之间的任务分工，一旦他们进入道路网络。然而，无法解释他们的决策过程和个人驱动力为经济学家提供了引入经济分析的空间，以便更好地理解交通替代方案之间的个人或集体决策。经济学家，尤其是 Daniel McFadden，开始提供方法来改进与交通相关的效用衡量标准，并为工程方法提供信息。