Samiul Hasan
@samiul.bsky.social
Researcher. Interested in urban data science, mobility, hurricane evacuation. Associate Prof. @UCF. CSIRO, Purdue & BUET alum. Some posts reflect my personal views only. https://www.cecs.ucf.edu/shasan/
Pinned
Samiul Hasan
@samiul.bsky.social
· Nov 14
Samiul Hasan, Ph.D., UCF Dept. of Civil, Environmental and Construction Engineering - Sept. 22, 2023
YouTube video by UCF College of Engineering and Computer Science
www.youtube.com
Another hurricane is likely in November? Last year I gave a 10-min talk at UCF on how rapidly intensifying hurricanes can complicate everything from evacuation to infrastructure disruption. These are some critical things for emergency management agencies to consider. www.youtube.com/watch?v=s10C...
An example of infrastructure dependency. Cloud --> Education
The AWS outage is certainly having effects with Canvas, the instructional platform @umassamherst.bsky.social, affected. Luckily, I am not teaching today but I have posted the next homework in my class and also a practice exam in Canvas. #academic #resilience
October 20, 2025 at 2:54 PM
An example of infrastructure dependency. Cloud --> Education
Cloud service outage will become part of infrastructure interdependency.
health.aws.amazon.com/health/status
health.aws.amazon.com/health/status
View the overall status and health of AWS services using the AWS Health Dashboard.
health.aws.amazon.com
October 20, 2025 at 2:46 PM
Cloud service outage will become part of infrastructure interdependency.
health.aws.amazon.com/health/status
health.aws.amazon.com/health/status
Reposted by Samiul Hasan
Kerr County was aware of the risk of flash flooding. I wonder why so many people lost lives.
www.youtube.com/watch?v=iTsJ...
www.youtube.com/watch?v=iTsJ...
Be Flood Aware 2017
YouTube video by Upper Guadalupe River Authority
www.youtube.com
July 6, 2025 at 1:53 PM
Kerr County was aware of the risk of flash flooding. I wonder why so many people lost lives.
www.youtube.com/watch?v=iTsJ...
www.youtube.com/watch?v=iTsJ...
Very pleased to share our article on infrastructure interdependency. We showed how interdependency between transportation and electric power networks can complicate power outage restoration. Congrats to my student Tasnuba. Thanks to NSF for supporting this. 🧪 doi.org/10.1061/NHRE...
Strengthening Infrastructure Resilience to Hurricanes by Modeling Transportation and Electric Power Network Interdependencies | Natural Hazards Review | Vol 26, No 3
AbstractCommunity resilience is significantly affected by infrastructure disruptions during
hurricanes. Resilience is generally defined as the ability of a system to manage shocks
and return to a norm...
doi.org
May 5, 2025 at 4:12 PM
Very pleased to share our article on infrastructure interdependency. We showed how interdependency between transportation and electric power networks can complicate power outage restoration. Congrats to my student Tasnuba. Thanks to NSF for supporting this. 🧪 doi.org/10.1061/NHRE...
Reposted by Samiul Hasan
New #article from Paul et al: A predictive model for household displacement duration after disasters
TL;DR: influence of property damage and unsanitary conditions and tenure status and income per household member) on displacement outcomes
www.researchgate.net/publication/...
TL;DR: influence of property damage and unsanitary conditions and tenure status and income per household member) on displacement outcomes
www.researchgate.net/publication/...
February 27, 2025 at 3:06 PM
New #article from Paul et al: A predictive model for household displacement duration after disasters
TL;DR: influence of property damage and unsanitary conditions and tenure status and income per household member) on displacement outcomes
www.researchgate.net/publication/...
TL;DR: influence of property damage and unsanitary conditions and tenure status and income per household member) on displacement outcomes
www.researchgate.net/publication/...
Reposted by Samiul Hasan
Our new #article with Jaideep Visave: The role of social capital in strengthening community resilience against floods: A case study of Mumbai, India
TL;DR: Trust in neighbors as a predictor of proactive coping , social support, and positive reappraisal
www.sciencedirect.com/science/arti...
TL;DR: Trust in neighbors as a predictor of proactive coping , social support, and positive reappraisal
www.sciencedirect.com/science/arti...
February 24, 2025 at 3:08 PM
Our new #article with Jaideep Visave: The role of social capital in strengthening community resilience against floods: A case study of Mumbai, India
TL;DR: Trust in neighbors as a predictor of proactive coping , social support, and positive reappraisal
www.sciencedirect.com/science/arti...
TL;DR: Trust in neighbors as a predictor of proactive coping , social support, and positive reappraisal
www.sciencedirect.com/science/arti...
Reposted by Samiul Hasan
Gaurab Chhetri from my lab (ait-lab.vercel.app) developed a dashboard (still demo version) to explore #BlueSky posts related to #TRBAM. A fun tool to see what's trending, check it out! trbam-bluesky-dashboard.vercel.app 🔍📊 #Transportation
February 17, 2025 at 9:16 PM
Gaurab Chhetri from my lab (ait-lab.vercel.app) developed a dashboard (still demo version) to explore #BlueSky posts related to #TRBAM. A fun tool to see what's trending, check it out! trbam-bluesky-dashboard.vercel.app 🔍📊 #Transportation
"Right turn on red movements are generally unsafe for pedestrians, bicyclists,..." the report says. I did not know that RTOR was proposed as an energy conservation measure. A study by @shamstanvir.bsky.social and others.
www.smartcitiesdive.com/news/right-t...
www.smartcitiesdive.com/news/right-t...
Right turns on red puts pedestrians at risk, Mineta study says
A 1970s-era federal law requires states to allow right turns on red lights. Mineta Transportation Institute researchers say it’s time to change that.
www.smartcitiesdive.com
February 7, 2025 at 3:07 AM
"Right turn on red movements are generally unsafe for pedestrians, bicyclists,..." the report says. I did not know that RTOR was proposed as an energy conservation measure. A study by @shamstanvir.bsky.social and others.
www.smartcitiesdive.com/news/right-t...
www.smartcitiesdive.com/news/right-t...
Reposted by Samiul Hasan
Analysis of the confined crowds at the San Fermín festival in Spain shows that dense crowds can self-organize into macroscopic chiral oscillators, coordinating the orbital motion of hundreds of individuals without external guidance, according to a paper in Nature. https://go.nature.com/3WKkb8r 🧪
February 5, 2025 at 10:46 PM
Analysis of the confined crowds at the San Fermín festival in Spain shows that dense crowds can self-organize into macroscopic chiral oscillators, coordinating the orbital motion of hundreds of individuals without external guidance, according to a paper in Nature. https://go.nature.com/3WKkb8r 🧪
Reposted by Samiul Hasan
Roughly 6,000 readers answered our poll, with many declaring that Bluesky was nicer, kinder and less antagonistic to science than X
https://go.nature.com/42tH8Ai
https://go.nature.com/42tH8Ai
Bluesky’s science takeover: 70% of Nature poll respondents use platform
Roughly 6,000 readers answered our poll, with many declaring that Bluesky was nicer, kinder and less antagonistic to science than X.
go.nature.com
January 24, 2025 at 11:52 AM
Roughly 6,000 readers answered our poll, with many declaring that Bluesky was nicer, kinder and less antagonistic to science than X
https://go.nature.com/42tH8Ai
https://go.nature.com/42tH8Ai
Reposted by Samiul Hasan
New #article from Alam et al: Assessing Urban–Rural Differences in Disaster Evacuation Vulnerability Among Minority Populations
TL;DR: 61.3 percent of urban minorities and 81.3 percent of rural minorities evacuated at least once in past disasters
www.tandfonline.com/doi/full/10....
TL;DR: 61.3 percent of urban minorities and 81.3 percent of rural minorities evacuated at least once in past disasters
www.tandfonline.com/doi/full/10....
January 23, 2025 at 5:28 PM
New #article from Alam et al: Assessing Urban–Rural Differences in Disaster Evacuation Vulnerability Among Minority Populations
TL;DR: 61.3 percent of urban minorities and 81.3 percent of rural minorities evacuated at least once in past disasters
www.tandfonline.com/doi/full/10....
TL;DR: 61.3 percent of urban minorities and 81.3 percent of rural minorities evacuated at least once in past disasters
www.tandfonline.com/doi/full/10....
Congratulations to my student Mobasshir whose paper has been selected as Editor's Choice for ASCE Transportation Engineering Part A journal. Anyone can download the paper until end of Jan 2025. Link of the paper: ascelibrary.org/doi/10.1061/...
January 18, 2025 at 4:18 AM
Congratulations to my student Mobasshir whose paper has been selected as Editor's Choice for ASCE Transportation Engineering Part A journal. Anyone can download the paper until end of Jan 2025. Link of the paper: ascelibrary.org/doi/10.1061/...
Reposted by Samiul Hasan
Georgia Tech prof Pat Mokhtarian has studied remote work for 40 years. She told me 15% of Americans now telework, triple the share before Covid.
Mokhtarian believes the shift is permanent -- and that it will transform US transportation.
My interview, in CityLab
Mokhtarian believes the shift is permanent -- and that it will transform US transportation.
My interview, in CityLab
Will Americans Ever Lose Their Taste for Telework?
The pandemic-era rise of remote work has hammered transit ridership and devastated downtowns. A transportation researcher looks at the long-term effects of our new commutes.
www.bloomberg.com
January 16, 2025 at 2:17 PM
Georgia Tech prof Pat Mokhtarian has studied remote work for 40 years. She told me 15% of Americans now telework, triple the share before Covid.
Mokhtarian believes the shift is permanent -- and that it will transform US transportation.
My interview, in CityLab
Mokhtarian believes the shift is permanent -- and that it will transform US transportation.
My interview, in CityLab
The LA fires may last longer than we expect. The Black Saturday bushfires in Victoria, Australia lasted more than a month in 2009. It was also a perfect storm event killing 173 people. It was summer in Australia, but this is winter in LA. en.wikipedia.org/wiki/Black_S...
Black Saturday bushfires - Wikipedia
en.wikipedia.org
January 12, 2025 at 3:32 PM
The LA fires may last longer than we expect. The Black Saturday bushfires in Victoria, Australia lasted more than a month in 2009. It was also a perfect storm event killing 173 people. It was summer in Australia, but this is winter in LA. en.wikipedia.org/wiki/Black_S...
Many are saying this is unprecedented. But we have limited knowledge of perfect storms and Black swan events. Our decision makers should be aware of those events and should use their judgment. We highlighted this ten years ago and a lot of works should be done in this space. doi.org/10.1007/s110...
January 12, 2025 at 3:19 PM
Many are saying this is unprecedented. But we have limited knowledge of perfect storms and Black swan events. Our decision makers should be aware of those events and should use their judgment. We highlighted this ten years ago and a lot of works should be done in this space. doi.org/10.1007/s110...
Reposted by Samiul Hasan
Apologies! Printing everything for the meeting takes months and we weren't on Bluesky for that deadline. But it seemed like a good idea to join anyway 😀
January 7, 2025 at 1:26 AM
Apologies! Printing everything for the meeting takes months and we weren't on Bluesky for that deadline. But it seemed like a good idea to join anyway 😀
Reposted by Samiul Hasan
If you’re at #TRB2025 today, please join the doctoral research workshop on travel behavior and modeling at 151B 1:30pm to hear @abdirashid.bsky.social discussing equitable transition to electric vehicles and @soukhova.bsky.social on accessibility measures. And many other interesting topics!
January 5, 2025 at 2:31 PM
If you’re at #TRB2025 today, please join the doctoral research workshop on travel behavior and modeling at 151B 1:30pm to hear @abdirashid.bsky.social discussing equitable transition to electric vehicles and @soukhova.bsky.social on accessibility measures. And many other interesting topics!
Our recent paper on Facebook data where we compared the evacuation rates of Lee and Pinellas counties in Florida during Hurricane Ian. Thanks to my student Mobasshir for leading the data analysis efforts. 🧪
authors.elsevier.com/a/1kKhk7t2zZ...
authors.elsevier.com/a/1kKhk7t2zZ...
authors.elsevier.com
December 27, 2024 at 2:53 AM
Our recent paper on Facebook data where we compared the evacuation rates of Lee and Pinellas counties in Florida during Hurricane Ian. Thanks to my student Mobasshir for leading the data analysis efforts. 🧪
authors.elsevier.com/a/1kKhk7t2zZ...
authors.elsevier.com/a/1kKhk7t2zZ...