1. THE EFFECT OF SPATIAL SEGMENTATION ON SAFETY PERFORMANCE FUNCTION MODELING Open Access Author: Wang, Xingsheng Title: THE EFFECT OF SPATIAL SEGMENTATION ON SAFETY PERFORMANCE FUNCTION MODELING Graduate Program: Computer Science Keywords: safety performance functionsroadway segmentationmachine learningNegative Binominal modelscoordinate-descent approachWeighted Absolute Percentage Errorclusteringgeneralizability of models File: Download XingshengWang_Master_Thesis_PSH_final2.pdf Committee Members: Jeremy Blum, Thesis Advisor/Co-AdvisorThang N. Bui, Committee MemberLinda Null, Committee MemberSukmoon Chang, Committee MemberOmar El Ariss, Committee MemberHyuntae Na, Committee Member