A
PROFILE
UPM's Staff Profile
DR. MEGAT USAMAH BIN MEGAT JOHARI
SENIOR LECTURER
FACULTY OF ENGINEERING
megatusamah@upm.edu.my
UPM WEBSITE
PROFILE
megatusamah
BM
EN

PROFESSIONAL

NAME :
(Dr.) MEGAT USAMAH BIN MEGAT JOHARI
POST :
SENIOR LECTURER
ENTITY :
FACULTY OF ENGINEERING

FIELD OF SUPERVISION
GEOGRAPHIC INFORMATION SYSTEM / GEOSPATIAL ENGINEERING / HIGHWAY AND TRANSPORTATION ENGINEERING
EDUCATION
DOCTOR OF PHILOSOPHY
MICHIGAN STATE UNIVERSITY
Graduated : 2022
MASTER OF SCIENCE
IOWA STATE UNIVERSITY
Graduated : 2018
BACELOR KEJURUTERAAN (AWAM)
UNIVERSITI PUTRA MALAYSIA, SERDANG, SELANGOR
Graduated : 2014
JOURNAL PUBLICATION
1. Do Dynamic speed feedback signs impact drivers differently based on speeding tendencies? Insights from applications at select critical roadway contexts
    Journal type: Citation-Indexed - Scopus
2. How is traffic safety affected by changes in traffic speeds following speed limit increases? An evaluation with probe vehicle data
    Journal type: Non Citation-Indexed
3. Examining Safety on Two-Lane and Multilane Highways in Consideration of Access Spacing
    Journal type: Citation-Indexed Journal - Science Citation Index (JCR)
4. An Analysis of Changes in County-Level Travel Behavior Considering COVID-19–Related Travel Restrictions, Immunization Patterns, and Political Leanings
    Journal type: Citation-Indexed Journal - Science Citation Index (JCR)
PUBLICATION
2025
Revisiting the Design Parameters Related to Stopping Sight Distance and Vertical Curve Length using Probabilistic Analyses
2025
An Examination of Roadway Characteristics Affecting Driver Speed Selection in Speed Transition Zones
2025
Mid-to-Post-Pandemic Mobility Patterns: A Case Study of Malaysia Highlighting Differential Trends in Work and Non-Work Trips
2025
Evaluating the Impacts of Cellphone Use Policies on Cellphone-Distracted Fatal Crashes
2023
Effects of Speed Feedback Trailer Positioning and Police Enforcement on Vehicular Speeds in Freeway Work Zone Lane Closures
2023
Do Dynamic speed feedback signs impact drivers differently based on speeding tendencies? Insights from applications at select critical roadway contexts
2022
An Analysis of Changes in County-Level Travel Behavior Considering COVID-19–Related Travel Restrictions, Immunization Patterns, and Political Leanings
2019
Examining Safety on Two-Lane and Multilane Highways in Consideration of Access Spacing
2018
An Examination of the Safety of Signalized Intersections in Consideration of Nearby Access Points