A Heckman selection model for the safety analysis of signalized intersections

• Main Authors: Xu, Xuecai, Wong, S. C., Zhu, Feng, Pei, Xin, Huang, Helai, Liu, Youjun
• Other Authors: Ma, Xiaolei
• Format: Article
• Language: English
• Published: 2017
• Subjects: Heckman Selection Model; Safety
• Online Access: https://hdl.handle.net/10356/86683; http://hdl.handle.net/10220/44174
• Institution: Nanyang Technological University

Purpose: The objective of this paper is to provide a new method for estimating crash rate and severity simultaneously. Methods: This study explores a Heckman selection model of the crash rate and severity simultaneously at different levels and a two-step procedure is used to investigate the crash ra...