Raed Alahmadi

ORCID: 0000-0001-6184-0650
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About
Contact & Profiles
Research Areas
  • Transportation Planning and Optimization
  • Traffic and Road Safety
  • Aerodynamics and Fluid Dynamics Research
  • Smart Parking Systems Research
  • Wind Energy Research and Development
  • Traffic control and management
  • Microbial Applications in Construction Materials
  • Wind and Air Flow Studies
  • Environmental and Social Impact Assessments
  • Innovative concrete reinforcement materials
  • Concrete Corrosion and Durability
  • Occupational Health and Safety Research
  • Transportation and Mobility Innovations
  • Traffic Prediction and Management Techniques

Al Baha University
2020-2023

Tip vortices are one of the most critical phenomena facing rotary wings such as propellers and wind turbine blades lead to changes in aerodynamic parameters blades. The winglet (WL) device is considered significant passive flow control devices. It used diminish strength at blade tip, enhance characteristics rotor blades, thereby increase overall efficiency. main objective this research improve turbines by adding a tip. An optimum profile was taken build geometry. has three with radius 0.36...

10.3390/en16135138 article EN cc-by Energies 2023-07-03

The formation of cracks in concrete structures occurs due to a multitude causes ranging from shrinkage external loading and environmental exposure. This phenomenon can significantly affect the lifecycle structures. Self-healing (SHC) is considered promoted innovation capable overcoming this inevitable occurrence. In accordance with current SHC development processes, paper utilizes numerical simulation approach test performance reinforced beam specimens modeled using commercial software...

10.3390/buildings13030809 article EN cc-by Buildings 2023-03-19

Examining the factors contributing to work zone crashes and implementing measures reduce their occurrence can significantly improve road safety. In this research, we utilized explainable boosting machine (EBM), a modern glass-box learning (ML) model, categorize predict zone-related interpret various factors. The issue of data imbalance was also addressed by utilizing crash from state New Jersey, comprising collected over course two years (2017 2018) applying augmentation strategies such...

10.3390/safety9040083 article EN cc-by Safety 2023-11-28

Abstract The study investigated the viability of implementing a demand-responsive transportation (DRT) system within premises Al-Baha University to facilitate punctual arrival students their classes and ensure convenient departure from campus. This aims demonstrate elucidate how data mining enhances efficiency DRT systems. case investigates potential improvements in operations through utilization techniques. research employs descriptive prescriptive techniques for trip planning data....

10.1007/s43995-023-00029-x article EN cc-by Deleted Journal 2023-09-01

Oversaturation of highways occurs due to their inadequate assessment and design. In this paper, we propose both a mathematical queuing model Discrete-Event Simulation (DES) framework based on Newell’s triangular flow-density relationship for the performance analysis multi-lane highway section. The proposed is finite capacity system, which captures an increase in flow with vehicle density up section unsaturated condition decrease case saturated condition, depicting actual traffic conditions...

10.3390/su15129194 article EN Sustainability 2023-06-07

This paper introduces sustainable transportation and its role in public health improvement. It goes through the effect ofTransportation policy planning decisions health. discusses Sustainable Transportation Area of impact interms

10.33965/ict_csc_wbc_2020_202008l013 article EN 2020-07-21
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