1. ALTERNATE APPROACHES FOR EXAMINING THE NEED FOR UPDATING SAFETY PERFORMANCE FUNCTIONS Open Access Author: Jia, Hang Title: ALTERNATE APPROACHES FOR EXAMINING THE NEED FOR UPDATING SAFETY PERFORMANCE FUNCTIONS Graduate Program: Civil Engineering Keywords: RENBannual indicator in SPF estimatepredictive abilitycalibration factor approachupdating SPFs File: Download Hang_Jia_Thesis.pdf Committee Members: Vikash Varun Gayah, Thesis Advisor/Co-AdvisorRajesh Paleti, Thesis Advisor/Co-AdvisorEric T. Donnell, Committee MemberPatrick Joseph Fox, Program Head/Chair