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R. Machemehl · SciRah

Researcher profile · Semantic Scholar

R. Machemehl

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R. Machemehl — researcher profile on SciRah

h-index: 30
Works: 286
Citations: 3,337

Most-cited papers

Evaluation of e-scooters as transit last-mile solution
Natalia Zuniga-Garcia, M. Tec, J.G.P. Scott, R. Machemehl
2022Transportation Research Part C: Emerging Technologies79 citations
Semantic Scholar
Bi-Level Optimization Model for Public Transportation Network Redesign Problem
Fan Wei, R. Machemehl
201156 citations
Semantic Scholar
E-scooters in urban infrastructure: Understanding sidewalk, bike lane, and roadway usage from trajectory data
Natalia Zuniga-Garcia, N. R. Juri, Kenneth A. Perrine, R. Machemehl
202149 citations
Semantic Scholar
Demand-responsive transit circulator service network design
Yao Yu, R. Machemehl, Chi Xie
201547 citations
Semantic Scholar
Integrating shared mobility services with public transit in areas of low demand
Natalia Zuniga-Garcia, K. Gurumurthy, Cesar N. Yahia, K. Kockelman +1 more
2022Journal of Public Transportation40 citations Open access
Semantic Scholar
Free-floating carsharing systems : innovations in membership prediction, mode share, and vehicle allocation optimization methodologies
K. Kortum, R. Machemehl
201239 citations
Semantic Scholar
Effects of Bicycle Boxes on Bicyclist and Motorist Behavior at Intersections in Austin, Texas
Jeff Loskorn, A. Mills, John F. Brady, J. Duthie +1 more
201335 citations
Semantic Scholar
Analyzing tour chaining patterns of urban commercial vehicles
Mubassira Khan, R. Machemehl
201732 citations
Semantic Scholar
Mapping resilience of Houston freeway network during Hurricane Harvey using extreme travel time metrics
Srijith Balakrishnan, Zhan-Min Zhang, R. Machemehl, Michael R. Murphy
202030 citations
Semantic Scholar
Effects of Shared Lane Markings on Bicyclist and Motorist Behavior
John F. Brady, A. Mills, Jeff Loskorn, J. Duthie +1 more
201026 citations
Semantic Scholar
Dockless Electric Scooters and Transit Use in an Urban/University Environment
Natalia Zuniga-Garcia, R. Machemehl
202021 citations
Semantic Scholar
Evaluation of ride-sourcing search frictions and driver productivity: A spatial denoising approach
Natalia Zuniga-Garcia, M. Tec, James G. Scott, Natalia Ruiz-Juri +1 more
2018Transportation Research Part C: Emerging Technologies21 citations Open access
Semantic Scholar
Multimodal Level of Service Methodologies: Evaluation of the Multimodal Performance of Arterial Corridors
Natalia Zuniga-Garcia, Heidi Ross, R. Machemehl
2018Transportation Research Record18 citations
Semantic Scholar
Commercial vehicles time of day choice behavior in urban areas
Mubassira Khan, R. Machemehl
201718 citations
Semantic Scholar
A Stochastic Dynamic Programming Approach for the Equipment Replacement Optimization under Uncertainty
W. Fan, R. Machemehl, Mason Gemar, Leonard Brown
201416 citations
Semantic Scholar
Robust Traffic Control Using a First Order Macroscopic Traffic Flow Model
Hao Liu, C. Claudel, R. Machemehl
2020IEEE transactions on intelligent transportation systems (Print)15 citations Open access
Semantic Scholar
The Impact of Land-Use Variables on Free-Floating Carsharing Vehicle Rental Choice and Parking Duration
Mubassira Khan, R. Machemehl
201715 citations
Semantic Scholar
Some Computational Insights on the Optimal Bus Transit Route Network Design Problem
W. Fan, R. Machemehl, N. Lownes
201215 citations Open access
Semantic Scholar
Data-Driven Methodology for Prioritizing Traffic Signal Retiming Operations
Michael R. Dunn, Heidi Ross, C. Baumanis, Jared Wall +4 more
2019Transportation Research Record13 citations
Semantic Scholar
A Robust Traffic Control Model Considering Uncertainties in Turning Ratios
Hao Liu, C. Claudel, R. Machemehl, Kenneth A. Perrine
2020IEEE transactions on intelligent transportation systems (Print)12 citations Open access
Semantic Scholar
Regional and Modal Variability in Effects of Gasoline Prices on U.S. Transit Ridership
Ashley R. Haire, R. Machemehl
201012 citations
Semantic Scholar
A Stochastic Dynamic Programming Approach for the Equipment Replacement Optimization with Probabilistic Vehicle Utilization
W. Fan, R. Machemehl, Mason Gemar, Leonard Brown
201211 citations
Semantic Scholar
Operational and Safety Implications of Three Experimental Bicycle Safety Devices in Austin, Texas
John F. Brady, Jeff Loskorn, A. Mills, J. Duthie +1 more
201111 citations
Semantic Scholar
Equipment Replacement Optimization
Fang-Hui Wei, R. Machemehl, K. Kortum
201110 citations Open access
Semantic Scholar
A machine learning approach to predicting bicycle demand during the COVID-19 pandemic
C. Baumanis, Jennifer Hall, R. Machemehl
2023Research on Transport Economics9 citations Open access
Semantic Scholar
Minimizing user delay and crash potential through highway work zone planning.
M. Kurker, C. Fournier, Qun Zhao, Shadi Hakimi +6 more
20149 citations
Semantic Scholar
Equipment Replacement Decision Making: Opportunities and Challenges
W. Fan, Mason Gemar, R. Machemehl
20139 citations Open access
Semantic Scholar
A Stochastic Formulation of the Optimal Boundary Control Problem Involving the Lighthill Whitham Richards Model
Hao Liu, C. Claudel, R. Machemehl
20188 citations Open access
Semantic Scholar
Optimization of Equipment Replacement
Fang-Hui Wei, R. Machemehl, Mason Gemar
20128 citations
Semantic Scholar
It's about time: Investing in transportation to keep Texas economically competitive - Appendices
Zhan-Min Zhang, Mike Murphy, R. Harrison, J. Weissmann +9 more
20118 citations
Semantic Scholar
Real Time Freeway Incident Detection
M. Motamed, R. Machemehl
20146 citations
Semantic Scholar
Inequity-Averse Pavement Maintenance and Rehabilitation Budget Allocation Incorporating Gini Index and Social Vulnerability
M. Al Amin, R. Machemehl
2025Transportation Research Record5 citations Open access
Semantic Scholar
Impact of Transportation Network Companies on Ground Access to Airports: A Case Study in Austin, Texas
Natalia Zuniga-Garcia, R. Machemehl
2021Transportation Research Record5 citations
Semantic Scholar
Equipment Replacement Optimization: Part II. Dynamic Programming- Based Optimization
R. Machemehl
20125 citations
Semantic Scholar
Establishing the Variation of Dynamic Traffic Assignment Results Using Subnetwork Origin-Destination Matrices
Jack Bringardner, Mason Gemar, S. Boyles, R. Machemehl
20144 citations
Semantic Scholar
Perceptions of Bicycle Signal Faces and Associated Compliance: Results of an Online Survey
C. Baumanis, Jennifer Hall, R. Machemehl, Nathan Wilkes
2023Transportation Research Record3 citations Open access
Semantic Scholar
Large-Scale Spatiotemporal Density Smoothing with the Graph-fused Elastic Net: Application to Ride-sourcing Driver Productivity Analysis.
M. Tec, Natalia Zuniga-Garcia, R. Machemehl, James G. Scott
20193 citations
Semantic Scholar
How Likely are Ride-share Drivers to Earn a Living Wage? Large-scale Spatio-temporal Density Smoothing with the Graph-fused Elastic Net
M. Tec, Natalia Zuniga-Garcia, R. Machemehl, James G. Scott
20193 citations
Semantic Scholar
Subnetwork Analysis for Dynamic Traffic Assignment Models
Mason Gemar, Jack Bringardner, S. Boyles, R. Machemehl
20143 citations
Semantic Scholar
Modeling the Traffic Impacts of Transit Facilities Using Dynamic Traffic Assignment
C. Melson, S. Boyles, R. Machemehl
20133 citations
Semantic Scholar
Travel Demand Management Guidebook
R. Machemehl, K. Kockelman, T. D. Chen, Lisa Smith +1 more
20133 citations
Semantic Scholar
Entry-Lane Capacity Analysis of Roundabouts in Texas Using VISSIM, SIDRA, and the Highway Capacity Manual
J. Duthie, R. Machemehl, A. Mills
20123 citations
Semantic Scholar
Feasibility of Converting Two-Way Left-Turn Lane into Bus Rapid Transit Lane
E. Dawson, Hongchao Liu, Hao Xu, R. Cheu +1 more
20113 citations
Semantic Scholar
Predicting the incremental effects on transit ridership due to Bus-On-Shoulder operations
E. Pappas, R. Machemehl
20103 citations
Semantic Scholar
Fuzzy Reliability Theory Analysis of Traffic Signal Lamp Performance
Mason Gemar, Shidong Pan, Zhanmin Zhang, R. Machemehl
2025Multimodal Transportation2 citations Open access
Semantic Scholar
Pavement Maintenance Prioritization Tool for Effects of Hydraulic Fracturing
Jake Gutekunst, M. Motamed, Ahmad Alrashidan, R. Machemehl
20162 citations
Semantic Scholar
Worker Safety in Very Short Duration Work Zone Operations: State of Practice and Risk Management Process
Li Wang, Sami Kolahdoozan, Dan P. K. Seedah, Fernanda Leite +1 more
20132 citations
Semantic Scholar
Equipment Replacement Decision Making: Challenges and Opportunities
W. Fan, Mason Gemar, R. Machemehl
20132 citations
Semantic Scholar
Proposed TxDOT Strategic Research Program—Second Year Report
K. Persad, C. Weatherby, P. Nash, R. Machemehl +2 more
20112 citations
Semantic Scholar
Texas Roundabout Guidelines
A. Mills, J. Duthie, R. Machemehl, Travis Waller
20112 citations
Semantic Scholar

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