Electric Ambulance Routing Based on Heuristic Cost-Based Planners in Pandemic Situations DOI

Luis Santiago Martín,

Mónica Alonso, Hortensia Amarís

et al.

Smart innovation, systems and technologies, Journal Year: 2023, Volume and Issue: unknown, P. 395 - 406

Published: Jan. 1, 2023

Language: Английский

Systematic literature review on impacts of COVID-19 pandemic and corresponding measures on mobility DOI Creative Commons
Kwang-Sub Lee,

Jin Ki Eom

Transportation, Journal Year: 2023, Volume and Issue: 51(5), P. 1907 - 1961

Published: April 25, 2023

The unprecedented COVID-19 outbreak has significantly influenced our daily life, and COVID-19's spread is inevitably associated with human mobility. Given the pandemic's severity extent of spread, a timely comprehensive synthesis current state research needed to understand impact on mobility corresponding government measures. This study examined relevant literature published present (March 2023), identified trends, conducted systematic review evidence regarding transport's response COVID-19. We key agendas synthesized results, examining: (1) changes by transport modes analyzed regardless policy implementation, using empirical data survey data; (2) effect diverse interventions reduce limit controversial issues travel restriction effects; (3) future issues. findings showed strong relationship between pandemic mobility, significant impacts decreased overall remarkable drop in transit ridership, behavior, improved traffic safety. Government implemented various non-pharmaceutical countermeasures, such as city lockdowns, restrictions, social distancing. Many studies were effective. However, some researchers reported inconsistent outcomes. provides urban planners valuable insights facilitate better preparation for health emergencies that affect transportation.

Language: Английский

Citations

26

COVID-19 effects on transport-related air pollutants: insights, evaluations, and policy perspectives DOI
Federico Cavallaro, Silvio Nocera

Transport Reviews, Journal Year: 2023, Volume and Issue: 44(2), P. 484 - 517

Published: June 19, 2023

This study analyses the relationship between Covid-19 and air pollutants resulting from transportation activities by addressing two research questions. First, it examines quantitative impacts of on emissions/concentrations. In this case, results are dependent temporal horizon political measures introduced to control virus. Greenhouse gases (GHGs) nitrogen oxides (NOx) exhibit a strong correlation with reduced road traffic, while influence other criteria (CO, SO2, PMx) is not univocally demonstrated. Second, specific modes (e.g. transport), systems public sectors freight transport). The generalised decrease in emissions consequence travel demand; however, true for sectors, such as last-mile delivery or private flights, which show an increase emissions. Moreover, unitary values register most cases, indicating reduction environmental effectiveness due modal shift towards solutions transport occupancy rates. post-pandemic world, significant issue arises when demand increases but share less responsive returning previous levels. Several lines stem these outcomes, ranging technical issues modelling safety perception choice) evaluation curbing mobility adopting fuel regulations). Another promising area involves exploring combination transport-related drivers, automation alternative fuels. Additionally, investigating coherence effects long-term decarbonisation policies important direction.

Language: Английский

Citations

22

Research on the Impact of COVID-19 on Micromobility Using Statistical Methods DOI Creative Commons
Vladimíra Štefancová, Alica Kalašová, Kristián Čulík

et al.

Applied Sciences, Journal Year: 2022, Volume and Issue: 12(16), P. 8128 - 8128

Published: Aug. 13, 2022

The situation of the COVID-19 pandemic has had enormous social and economic impacts significantly affected modal split. Many cities worldwide have adopted various blocking policies that affect how people travel. Micromobility systems, such as scooters bicycle sharing, were among transport systems by COVID-19. Electric shared bicycles provide comfortable fast first-/last-mile connections for short-distance rides. nature these modes, together with spread COVID-19, contributed to declining use services. quantification impact on services was demonstrated this research through mathematical methods. Satisfaction alternative modes during determined based evaluation a questionnaire survey. Independence tests qualitative features statistically significant associations correspondence analysis used comparison. main conclusion point out reasons preference highlight health fears contracting when using micromobility

Language: Английский

Citations

28

Impact of COVID-19 Restrictions and Traffic Intensity on Urban Stormwater Quality in Denver, Colorado DOI Creative Commons

Khaled A. Sabbagh,

Pablo A. Garcia‐Chevesich, John E. McCray

et al.

Urban Science, Journal Year: 2025, Volume and Issue: 9(3), P. 81 - 81

Published: March 12, 2025

Urban stormwater may contain pollutants from different traffic vehicular sources including brake and tire wear, exhaust emissions, atmospheric deposition. In this research, we took advantage of COVID-19 restrictions to evaluate the effects historically low circulation on quality (metal concentrations mass loads) generated an urban watershed in Denver (Colorado). The analysis was performed at hydrograph stages, i.e., first flush, peak flow, recession stages during after imposition restrictions. Metal were compared with maximum contaminant levels (MCLs) defined by US Environmental Protection Agency (EPA) for drinking water as indicator degradation. results indicate that Fe Mn constantly above MCLs stormwater, while then level Pb occasionally surpassed limits. Additionally, highest pollutant loads generally occurred flow conditions. Importantly, there a clear effect restrictions, suggesting more pollution lifted, result vehicles circulating. Considering local climate, Fe, Mn, (the concern) estimated be 0.4489, 0.0772, 0.00032 MT/year, respectively, which are similar reported literature cities climates development levels.

Language: Английский

Citations

0

Vehicle Market Analysis of Drivers’ Preferences in Terms of the Propulsion Systems: The Czech Case Study DOI Creative Commons
Agnieszka Dudziak, Jacek Caban, Ondřej Stopka

et al.

Energies, Journal Year: 2023, Volume and Issue: 16(5), P. 2418 - 2418

Published: March 3, 2023

The automotive sector has been experiencing a rapid development in recent times. Modern trends aim at the progress of so-called sustainable, eco-friendly vehicles, many cases associated with advanced technologies and assistance systems. It is increasingly common to see cars electric, hybrid, gas or hydrogen propulsion Such approaches can create transformation manufacturing processes towards growth new types fields systems industry. manuscript discusses subject vehicles various power supply, i.e., system. investigation was executed different respondent groups whereby analysis performed predominantly by using two merging criteria such as place residence gender respondents. Following research conducted, we state that given variety variables, majority respondents are convinced that, prospectively, electric hybrid all probability will be prevailing occurring on roads Czech Republic. However, it also important analyze situation current access energy resources for both kinds and, above all, their utilization. Thus, preferences drivers key issues, but necessary take into consideration production capacity investment profitability regarding purchase modern

Language: Английский

Citations

7

Emissions Production by Exhaust Gases of a Road Vehicle’s Starting Depending on a Road Gradient DOI Creative Commons
Branislav Šarkan, Michal Loman, František Synák

et al.

Sensors, Journal Year: 2022, Volume and Issue: 22(24), P. 9896 - 9896

Published: Dec. 15, 2022

An increasing number of motor vehicles are connected with negative environmental impacts in relation to their operation. Among the main effects exhaust gas emissions production. The annual increase passenger cars and from them deteriorates air quality daily. Traffic junctions also have a impact on production by gases. This situation may be caused vehicle speed fluctuation, mainly when they get closer or leave. study focuses produced gases after road starts. research was performed combustion engine route 30 m long. simulated three different ways starting (uphill, ground level/plain downhill). values carbon monoxide (CO), dioxide (CO2), hydrocarbons (HC) nitrogen oxides (NOX) were observed, as well vehicle’s operation performance during start-ups. results showed that lowest is downhill. There, increased up distance 9.7 start. After reaching this distance, decreased continued increase. While started uphill, 16.8 m. began decreasing. Due fact, type testing assessed “the worst” point view. demonstrates relations between gradient representing plain surface It known higher predominantly at junctions. They depend considerably driving continuity route. helps quantify all data and, thus, provide possibility further solutions future tool for reduction cities close traffic intersections.

Language: Английский

Citations

9

Identification of places with deteriorated air quality in city of Žilina in relation to road transport DOI Open Access
Branislav Šarkan, Michal Loman, Veronika Harantová

et al.

The Archives of Automotive Engineering/ Archiwum Motoryzacji, Journal Year: 2023, Volume and Issue: 102(4), P. 68 - 90

Published: Dec. 28, 2023

The aim of the research is to identify places with deteriorated air quality in selected city. After an analytical analysis data, it possible propose steps that can be used actively contribute reduction pollution, especially due road traffic. Places where was identified were on basis practical measurements. Given measurement route designed a built-up area city large number pedestrians, primarily focused identification particulate matters (PM) and concentration carbon monoxide CO. measurements performed repeatedly pre-defined route. carried out during morning rush hour when traffic congested roads. Based processing evaluation measurements, sections increased values individual emissions recorded determined. In this way, precisely deteriorates. conclusions provide support for planning optimization management policies towards creation sustainable cities. results present possibilities identifying problematic from point view production. Critical regard production connected permanently movement vehicles observed.

Language: Английский

Citations

4

Influence of the COVID pandemic on the data of the System for Continuous Monitoring of Traffic Flow Dynamics on the Road Network of the Czech Republic DOI
Pavel Hrubeš, Martin Langr, Zuzana Purkrábková

et al.

Published: May 25, 2023

Floating car data (FCD) is a beneficial consequence of the modern telematics technologies in logistics and automotive industry, can thus be an additional source transportation about current traffic flows on road network. There state-provided free this available Czech Republic, which relatively new gradually being introduced for use by public private sectors. This appears to very promising nationwide coverage; however, due its novelty, it necessary advisable investigate qualitative parameters assess whether actually adequately characterizes vehicle flows. The present paper deals with characteristics quality processed FCD outputs before during covid-19 pandemic, possibility capturing comparing significant changes behaviour users. describes impact associated pandemic measures country general, detected processing, as well FCDs such. It also tests hypothesis that although has been reduced result still have sufficient predictive value. specifics spatial temporal domain analyzed makes recommendations future work models predictions.

Language: Английский

Citations

3

Sound complexity as a strategy for livable and sustainable cities: The case of an urban waterfront DOI Creative Commons
Aggelos Tsaligopoulos, Stella Kyvelou, Aimilia Karapostoli

et al.

Noise Mapping, Journal Year: 2023, Volume and Issue: 10(1)

Published: Jan. 1, 2023

Abstract Public spaces underwent a notable shift in their acoustic profile during the societal restrictions resulting from COVID-19 pandemic. A silver lining emerged this global crisis, with noticeable improvements public environments due to reduced noise levels restricted mobility. This research focuses on environment of Thessaloniki’s waterfront, Mediterranean metropolis Northern Greece. Waterfronts coastal cities provide unique worthy protection environmental noise. By analyzing sound level measurements and recordings 2021 lockdown comparing them post-lockdown period 2022, we aimed explore complexity indicators. The study’s findings revealed significant increase lockdown, underscoring an inverse relationship between complexity. Urban waterfronts, like Thessaloniki’s, hold great potential for enhancing subsequently improving quality while protecting sheds light possible use as standard that can be incorporated sustainable urban planning design.

Language: Английский

Citations

3

Comparison of Airport Operations Before, During and After the COVID-19 period in Slovakia DOI Open Access
Michal Hovanec, Volodymyr Tymofiiv, Juraj Horkay

et al.

TEM Journal, Journal Year: 2023, Volume and Issue: unknown, P. 2166 - 2176

Published: Nov. 27, 2023

The COVID-19 pandemic has had a profound impact on global travel, resulting in significant disruptions to airport operations worldwide. study Slovakia before, during, and after the found that passenger traffic flight frequencies experienced declines during pandemic, causing operational financial challenges for airports. research utilizes mixed-methods approach, combining quantitative data analysis qualitative insights from key stakeholders involved management operations. In post-pandemic period, while there was some recovery, numbers remained below pre-pandemic levels. study's results suggest aviation industry faces ongoing adapting new normal, with implications future investments strategies management, capacity planning, sustainability.

Language: Английский

Citations

2