Warsaw, Poland

Ahmed
Almadhoun

Transport Engineer and PhD Researcher focused on freight systems, accessibility, and real-world infrastructure performance.

I study how transport infrastructure shapes economic access, especially in freight systems that most people depend on but rarely notice.

View Research Photography

Published research, simulation models, and real-world infrastructure analysis.

I work on understanding how infrastructure limitations affect freight movement and economic connectivity. My work combines simulation, data analysis, and real-world transport systems to identify inefficiencies and improve accessibility.

Freight Accessibility
Measuring how logistics networks connect regions, corridors, and economic activity.
Transport Simulation
Using modelling and data analysis to test infrastructure performance and alternatives.
Infrastructure Equity
Understanding where transport systems create hidden disadvantages and uneven access.

How the work unfolded.

2018
Bachelor's Degree in Civil Engineering
Completed undergraduate studies in Civil Engineering, building the technical foundation in infrastructure, structural analysis, and transport systems.
Education
2024
Master's Degree — Wrocław Transportation System
Completed a Master's thesis reconstructing and optimising the urban transportation system of Wrocław city using PTV VISUM. Full network modelling and scenario analysis to propose a better-performing system.
Education
2024
PhD Begins — Warsaw University of Technology
Started doctoral research at the Faculty of Transport under Prof. Mariusz Kostrzewski. Focus: freight accessibility, transport poverty, and infrastructure equity in metropolitan systems.
PhD Start
2025
TRANSCOM 2025 — Abu Dhabi Simulation Paper
First conference paper presented at TRANSCOM 2025. Applied PTV VISSIM to model the 79th Street corridor in Musaffah, Abu Dhabi, calibrating from field-collected peak and off-peak traffic data to evaluate congestion interventions.
Conference Paper
2025
Smart City Planning for Post-War Reconstruction
Co-authored research on integrating electromobility and freight accessibility into post-war urban reconstruction frameworks. Published with Oficyna Wydawnicza Politechniki Warszawskiej.
Publication
2025
Freight Accessibility Penalty — Warsaw Case Study
Developed the Freight Accessibility Penalty (FAP) framework. Evaluated 8 freight corridors connecting Warsaw logistics hubs to expressway interchanges. Quantified infrastructure-induced transport poverty in a Warsaw metropolitan context. Awaiting publication.
Core Research
2026
Digital Twins & Blockchain — Elsevier Book Chapter
Writing a chapter on blockchain-enabled digital twin architectures for smart transportation, exploring secure data communication between physical and virtual transport assets. Part of an Elsevier volume on Digital Twins for Smart Transportation, due 2027.
Book Chapter
2028
PhD Thesis — Transport Poverty in Freight Transportation
Engineering challenges, impacts, and strategic solutions for improved economic connectivity. Combining analytical and simulation-based approaches across Warsaw's metropolitan freight network.
Expected

Research and publications

01

>- The quick digitization of transportation systems has made the adoption of digital twins better, quicker and more needed. This would enable better monitoring, simulation and optimization of transport infrastructure, vehicles and logistics networks. However, the effectiveness of digital twin environments depends on the exchange of large volumes of data between assets, sensors and digital platforms that are available. Ensuring data integrity, trust and the validity of such connected systems remains the major challenge, especially in the context of smart transportation ecosystems. Blockchain technology has begun as a promising solution for addressing these challenges by providing decentralized and transparent mechanisms for data validation and secure communication. By leveraging distributed ledger technologies and smart contracts, blockchain can enhance trust among stakeholders, protect critical transportation data from manipulation and support strong and reliable communication between digital twin components. This chapter will explore the integration of blockchain technology with digital twin architectures in smart transportation systems. It will examine the role of blockchain in strengthening data security, ensuring traceability, and enabling decentralized coordination between physical and virtual transportation assets. The chapter will review current research developments, propose a conceptual framework for available digital twin communication, and discuss potential applications in intelligent transportation systems, autonomous mobility, and logistics networks. Finally, the chapter will highlight implementation challenges including scalability and regulatory considerations, while outlining future research directions for secure and resilient smart transportation ecosystems.

digital twinBlockchainSmart TransportationIntelligent Transportation SystemsSecure Data CommunicationDistributed Ledger TechnologyCybersecurity in TransportSmart Mobility Infrastructure
Google Scholar
Elsevier Book Chapter, Blockchain-based communication systems
02

> Freight accessibility depends not only on network connectivity but also on the engineering quality of roads. This study introduces a framework that integrates pavement condition and geometric design into freight accessibility analysis. Eight freight corridors connecting logistics zones to expressway interchanges in Warsaw were evaluated. Accessibility Efficiency Scores (AES) were computed from observed distance and travel time and adjusted using Surface and Constraint Factors derived from engineering assessment. The Freight Accessibility Penalty (FAP) quantified the proportion of accessibility loss caused by physical deficiencies. Results showed significant variation among corridors: eastern Lubelska and western Pruszków connections achieved the highest adjusted accessibility. In contrast, in inner city such as Okęcie and Targówek exhibited the highest penalties (FAP ≈ 0.145, a 14.5% loss), driven by the effect of poor pavement quality (Surface Factor = 0.90) and geometric constraints (Constraint Factor = 0.95). The findings demonstrate that infrastructure quality can alter freight efficiency even in well developed networks. The proposed FAP offers a transparent metric for identifying infrastructure related transport poverty and prioritising maintenance investments.

AccessibilityFreight transportPavement conditionInfrastructure equityWarsawTransport poverty
Google Scholar
To be Published
03

> Reconstructing cities after war is not only a task of rebuilding damaged infrastructure. It is also a rare chance to apply modern planning ideas and technologies that improve how cities function. This research highlights how postwar reconstruction can be guided by smart city principles, with a special focus on freight transport and electromobility (also as the key critical infrastructure factors). Freight networks are essential to everyday life, yet they are often ignored in urban planning. By planning for clean and fair freight access during reconstruction, cities can support both social inclusion and economic recovery.

ElectromobilityTransport povertyUrban reconstruction
Google Scholar
Oficyna Wydawnicza Politechniki Warszawskiej, 2025
04

Digital shadowing uses powerful simulation technologies to mimic real-world traffic networks, allowing data-driven solutions to improve urban mobility. PTV Vissim, a microscopic traffic simulation software, is applied in this study to mimic the 79th Street in Musaffah, Abu Dhabi (the capital of United Arab Emirates). The simulation model was built and calibrated using traffic data obtained manually by the research team during peak and off-peak hours. By simulating real-world traffic circumstances, the model identifies congestion points and evaluates proposed interventions with a view to improve traffic flow and reduce congestion. The findings show that digital shadowing may be used to manage and optimize urban traffic, providing transportation planners with relevant knowledge.

PTV VissimTraffic simulationUrban congestionTransportation modellingDigital shadowing
DOI Link Google Scholar
Transportation Research Procedia, 2026
05

This research examines transport poverty in freight transportation, focusing on how infrastructure limitations, accessibility gaps, and logistical inefficiencies affect economic connectivity. The study analyzes engineering challenges, evaluates system-level impacts on supply chains and regional development, and proposes strategic solutions to improve freight accessibility. A combination of analytical and simulation-based approaches is used to assess network performance and identify areas of intervention.

Transport povertyFreight transportationLogisticsAccessibilityInfrastructureEconomic connectivitySupply chainsTransport engineering
Google Scholar
PhD Thesis, Warsaw University of Technology, Faculty of Transport, 2028

Through the viewfinder.

Photography focused on stillness, structure, and quiet geometry in everyday environments.

Afterglow
Photography
Afterglow
Abu Dhabi, UAE
01
Convergence
Photography
Convergence
Budapest, Hungary
02
Echoes of Streets
Photography
Echoes of Streets
Krakow, Poland
03
Every word falls short in Istanbul
Photography
Every word falls short in Istanbul
Istanbul, Türkiye
04
Exhale
Photography
Exhale
Budapest, Hungary
05
Gold
Photography
Gold
Istanbul, Türkiye
06
Hagia Sophia
Photography
Hagia Sophia
Istanbul, Türkiye
07
Sanctum
Photography
Sanctum
Budapest, Hungary
08
Silence Above the City
Photography
Silence Above the City
Istanbul, Türkiye
09
Street Symphony
Photography
Street Symphony
Krakow, Poland
10
Passage
Photography
Passage
Budapest, Hungary
11
Time, Ferried
Photography
Time, Ferried
Istanbul, Türkiye
12
Visual Poetry
Photography
Visual Poetry
Türkiye
13
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Photography · Full Archive
Everywhere
I've stood still.
Hungary
Poland
Türkiye
UAE
and beyond
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The person behind the work.

I work at the intersection of transport engineering, simulation, and infrastructure analysis. My focus is on understanding how real-world systems operate under constraints, and how they can be improved for the people and businesses that depend on them.

Currently completing a PhD at the Faculty of Transport, Warsaw University of Technology, where I also teach and support courses in engineering and transport systems.

Alongside research, I photograph places the way I study them, slowly and deliberately, looking for what gets overlooked. Lately that means film-style settings, grain, and the quiet geometry of everyday environments.

Position
PhD Researcher and Teaching Assistant
Faculty of Transport, Warsaw University of Technology
Research Focus
Freight Accessibility and Transport Poverty
Spatial analysis, simulation, infrastructure equity
Tools
PTV VISSIM, Python, R, GIS
Spatial modelling and transport simulation
Contact
Warsaw, Poland

Ideas, notes, and observations.

April 2026

Why freight never gets mentioned when we talk about transport poverty

Everyone talks about buses, metros, and whether poor neighbourhoods have access to jobs. Nobody asks whether the businesses in those neighbourhoods can actually receive goods, ship products, or stay connected to supply chains. That silence is what my PhD is about.

Research
April 2026

When infrastructure quietly fails

Most infrastructure does not fail dramatically. It continues to function, but introduces small frictions that gradually reshape how systems perform.

Research

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Research Visualised
Warsaw freight accessibility map.
Eight corridors evaluated for infrastructure-induced accessibility penalties.
Hover any corridor to see its AES and FAP scores from the paper.
Distance
Travel time
AES raw
AES adjusted
Surface factor
Constraint factor
Low penalty (FAP < 5%)
Moderate penalty (FAP 5–10%)
High penalty (FAP > 10%)
Corridors evaluated
8
Warsaw metro area
Highest penalty
14.5%
Okęcie & Targówek
Best performer
0%
Pruszków & Mszczonów
Avg. penalty
7.1%
Across all corridors