Improving parent-child communication: creating a relaxed conversation atmosphere during the COVID-19 quarantine period

With the influence of COVID-19, people all over the world are facing significant challenges. Families with school-aged children face difficulties in helping the children transition from traditional school to online education while bearing various stress due to the epidemic quarantine measures. The situation leads to an intense parent-child...

Spatial-temporal potential exposure risk analytics and urban sustainability impacts related to COVID-19 mitigation: A perspective from car mobility behaviour

Coronavirus disease-2019 (COVID-19) poses a significant threat to the population and urban sustainability worldwide. The surge mitigation is complicated and associates many factors, including the pandemic status, policy, socioeconomics and resident behaviours. Modelling and analytics with spatial-temporal big urban data are required to assist...

Station Crowd Redistribution and Pandemic Resilience: Access and Egress-Based Solutions to Station Crowding

The COVID-19 pandemic has had a substantial impact on public transportation. With ridership figures decreasing, it has brought a new sense of urgency to the old problem of crowding. Using a structured design approach, this paper presents the results of a project which set out to reduce crowding in Dutch train stations by<br/>absorbing it at the...

Under Pandemic: Assessment of Ventilation in Secondary Schools in The Netherlands

To investigate the sufficiency of ventilation during the COVID-19 pandemic for school children, a field study was conducted in 37 classrooms of 11 Dutch secondary schools between October 2020 and June 2021. All the classrooms were visited twice, before and after a three-month national lockdown, when different measures against COVID-19 were taken...

Astraea: Anonymous and Secure Auditing Based on Private Smart Contracts for Donation Systems

Many regions are in urgent need of facial masks for slowing down the spread of COVID-19. To fight the pandemic, people are contributing masks through donation systems. Most existing systems are built on a centralized architecture which is prone to the single point of failure and lack of transparency. Blockchain-based solutions neglect...