Alireza Ermagun
Biographic Data
| ID | 4895410 |
|---|---|
| NAME | Alireza Ermagun |
| GIVEN NAMES | Alireza |
| FAMILY NAME | Ermagun |
| SIGNATURE | ERMAGUN A |
| AFFILIATIONS | George Mason University |
| ORCID | 0000-0002-2820-5724 |
| VERIFIED | Yes |
| TOTAL WORKS | 28 |
| TOTAL CITATIONS | 20 |
| WORKS AS AUTHOR | 28 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 2017 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 2 |
Extreme weather effects on bikeshare ridership across climate regions
Weather alerts reduce bikeshare trips but not equally across communities
Urban flooding restructures mobility through coupled behavioral and network disruption
Behavioral adaptations follow a sequenced shift from retiming to rerouting to cancellation. • System performance degrades in parallel through slower speeds, higher VHT, and detours. • Flood, built-environment, and trip factors jointly structure mobility disruption. • Mobility losses are uneven across groups, modes, and activity types. • Integrated individual-system evidence remains limited across the literature. This systematic review synthesizes…
Bridging the gap with highway cap
Limited shelter access exacerbates coastal flood risks for vulnerable communities
Daily activity duration tolerance
Does easy mean happy? Exploring the impact of ease of travel on travel satisfaction
Many studies have examined the determinants of travel satisfaction. However, how the perceived ability to travel, i.e., ease of travel (EoT), influences travel satisfaction has not been analysed in a comprehensive way. In this study, we will analyse how EoT, which is comprised of travel motivation, travel skills, travel options and travel quality, impacts satisfaction with travel to campus of 2593 students and staff members of University College …
The new commute
Social and spatial inequalities of contemporary food deserts
Access Weight Matrix
This study introduces the Access Weight Matrix (AWM) to capture the spatial dependence of access across a geographical surface. AWM is a nonsymmetry, nonzero diagonal matrix with elements to be a function of (i) the spatial distribution of places, (ii) the number of places, and (iii) the travel‐time threshold to reach places rather than distance, contiguity, or adjacency. AWM is tested and validated to examine the spatial dependence of transit ac…
Unraveling transit service and land use components of the socio-spatial inequality of access
This study proposes a framework that delineates the mobility and place components of access to help identify areas potentially suffering from insufficient transit service, limited job opportunities, or both. The framework introduces Spatial Inequality of Transit Services (SITS) and Spatial Inequality of Opportunities (SIO) measures to guide the structural reform of transit development policies through the lens of equity, equality, and need. It is…
Charging into inequality
Transit access effectiveness in American metropolitan areas
Four-step framework for untangling place and mobility components of access
A spatiotemporal disparity of transit and automobile access gap and its impact on transit use
This research empirically evaluates the access gap between transit and automobile to examine the extent of auto-access-orientation within and between the 50 American Metropolitan Areas. The Modal Access Gap (MAG) index is calculated over space and travel time to test three hypotheses: (1) MAG is a function of space and travel time, (2) MAG is CBD-centric, and (3) MAG is associated with transit use. Results indicate that (1) MAG merely possesses n…
Uncertainty in vulnerability of metro transit networks
Spatial equity of modal access gap to multiple destination types across Chicago
Transit access and urban space-time structure of American cities
Shipment status prediction in online crowd-sourced shipping platforms
Performance analysis of crowd-shipping in urban and suburban areas
“I’ll never stop driving my child to school”
Development and application of the network weight matrix to predict traffic flow for congested and uncongested conditions
To capture network dependence between traffic links, we introduce two distinct network weight matrices ([Formula: see text]), which replace spatial weight matrices used in traffic forecasting methods. The first stands on the notion of betweenness centrality and link vulnerability in traffic networks. To derive this matrix, we use an unweighted betweenness method and assume all traffic flow is assigned to the shortest path. The other relies on flo…
Cycling usage and frequency determinants in college campuses
Variations in airline passenger expectation of service quality across the globe
Mode choice and travel distance joint models in school trips
Community mobility Maup-ing
Influences of LRT on travel behaviour
Following scant evidence for the effects of proximity to rail transit on car use, we pinpoint the impacts of rail transit and neighbourhood characteristics on both transit and car use in the Minneapolis-St. Paul metropolitan area. We apply the structural equations modelling approach on 597 residents who moved into the Hiawatha Light Rail Transit (LRT) corridor after it opened. The analysis is based on a self-administrated survey where all attribu…
Four-step framework for untangling place and mobility components of access
Spatial equity of modal access gap to multiple destination types across Chicago
The new commute
Charging into inequality
Uncertainty in vulnerability of metro transit networks
Transit access and urban space-time structure of American cities
Cycling usage and frequency determinants in college campuses
Variations in airline passenger expectation of service quality across the globe
Built environmental impacts on commuting mode choice and distance
Community mobility Maup-ing
Influences of LRT on travel behaviour
Following scant evidence for the effects of proximity to rail transit on car use, we pinpoint the impacts of rail transit and neighbourhood characteristics on both transit and car use in the Minneapolis-St. Paul metropolitan area. We apply the structural equations modelling approach on 597 residents who moved into the Hiawatha Light Rail Transit (LRT) corridor after it opened. The analysis is based on a self-administrated survey where all attribu…
Mode choice and travel distance joint models in school trips
Development and application of the network weight matrix to predict traffic flow for congested and uncongested conditions
To capture network dependence between traffic links, we introduce two distinct network weight matrices ([Formula: see text]), which replace spatial weight matrices used in traffic forecasting methods. The first stands on the notion of betweenness centrality and link vulnerability in traffic networks. To derive this matrix, we use an unweighted betweenness method and assume all traffic flow is assigned to the shortest path. The other relies on flo…
Cycling usage and frequency determinants in college campuses
Variations in airline passenger expectation of service quality across the globe
Shipment status prediction in online crowd-sourced shipping platforms
Performance analysis of crowd-shipping in urban and suburban areas
“I’ll never stop driving my child to school”
Transit access and urban space-time structure of American cities
Spatial equity of modal access gap to multiple destination types across Chicago
A spatiotemporal disparity of transit and automobile access gap and its impact on transit use
This research empirically evaluates the access gap between transit and automobile to examine the extent of auto-access-orientation within and between the 50 American Metropolitan Areas. The Modal Access Gap (MAG) index is calculated over space and travel time to test three hypotheses: (1) MAG is a function of space and travel time, (2) MAG is CBD-centric, and (3) MAG is associated with transit use. Results indicate that (1) MAG merely possesses n…
Uncertainty in vulnerability of metro transit networks
Social and spatial inequalities of contemporary food deserts
Access Weight Matrix
This study introduces the Access Weight Matrix (AWM) to capture the spatial dependence of access across a geographical surface. AWM is a nonsymmetry, nonzero diagonal matrix with elements to be a function of (i) the spatial distribution of places, (ii) the number of places, and (iii) the travel‐time threshold to reach places rather than distance, contiguity, or adjacency. AWM is tested and validated to examine the spatial dependence of transit ac…
Unraveling transit service and land use components of the socio-spatial inequality of access
This study proposes a framework that delineates the mobility and place components of access to help identify areas potentially suffering from insufficient transit service, limited job opportunities, or both. The framework introduces Spatial Inequality of Transit Services (SITS) and Spatial Inequality of Opportunities (SIO) measures to guide the structural reform of transit development policies through the lens of equity, equality, and need. It is…
Charging into inequality
Transit access effectiveness in American metropolitan areas
Four-step framework for untangling place and mobility components of access
Limited shelter access exacerbates coastal flood risks for vulnerable communities
Daily activity duration tolerance
Does easy mean happy? Exploring the impact of ease of travel on travel satisfaction
Many studies have examined the determinants of travel satisfaction. However, how the perceived ability to travel, i.e., ease of travel (EoT), influences travel satisfaction has not been analysed in a comprehensive way. In this study, we will analyse how EoT, which is comprised of travel motivation, travel skills, travel options and travel quality, impacts satisfaction with travel to campus of 2593 students and staff members of University College …
The new commute
Extreme weather effects on bikeshare ridership across climate regions
Urban Transport and Accessibility (19 works) · Engineering (16 works) · Geography (15 works) · Transport engineering (14 works) · Business (11 works) · Computer Science (11 works) · Transportation Planning and Optimization (10 works) · Public transport (9 works) · Economics (7 works) · Marketing (6 works)