Analyzing the Freight Characteristics and Carbon Emission of Construction Waste Hauling Trucks: Big Data Analytics of Hong Kong

Wei, Xiaoxuan; Ye, Meng; Li, Yuan; Bi, Wei; Lu, Weisheng

doi:10.3390/ijerph19042318

Cited by 13 publications

(5 citation statements)

References 51 publications

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“…Therefore, when analysing the impact of greenhouse gases from the transport sector, the total emissions are expressed in equivalent CO 2 e, taking into account the greenhouse potential values of the constituent gases. The CO 2 e emission value was calculated from Formula (3): Global warming potential (GWP) is generally considered a vital indicator for the effects of GHG emissions, with the GWP of CO 2 defined as 1 [23][24][25]. The GWP values chosen for CH 4 and N 2 O are values over a 100-year time horizon relative to CO 2 .…”

Section: Resultsmentioning

confidence: 99%

Sustainable Public Transport Strategies—Decomposition of the Bus Fleet and Its Influence on the Decrease in Greenhouse Gas Emissions

2022

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The COVID pandemic has caused a major exodus of passengers who chose urban and suburban transport. In many countries, especially in the European Union, there is a tendency to choose individual means of transport, causing damage to the environment and contributing significantly to greenhouse gas emissions. One method to promote urban transport is replacing bus fleets with newer ones, thus making public transport more attractive and reducing the emission of harmful exhaust fume components into the atmosphere. The aim of this study was to show a methodology for calculating CO2e for bus fleets. When determining CO2e, the principal greenhouse gases, such as CO2, CH4, and N2O, are usually considered. However, CO emissions also have indirect effects on climate through enhanced levels of tropospheric O3 and increased lifetime of CH4; therefore, CO2, CH4, N2O, and CO emissions were determined for CO2e emission calculations. Two bus fleet variant scenarios were analysed; the first non-investment variant assumed passenger transport using the old fleet without any P&R parking zones. The second scenario was based on the current state, which includes the purchase of new low-emission buses and the construction of P&R infrastructure. The calculations were performed using the COPERT emission model with real data from 52 buses running on 13 lines. For the analysed case study of the Rzeszow agglomeration and neighbouring communes, implementing the urban and suburban transport modernisation project resulted in a reduction in estimated CO2e emissions of about 450 t. The methodology presented, which also considers the impact of CO emissions on the greenhouse effect, is a new element of the study that has not been presented in previous works and may serve as a model for other areas in the field of greenhouse gas emission analyses. The future research scope includes investigation of other fuels and powertrain supplies, such as hydrogen and hybrid vehicles.

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Section: Resultsmentioning

confidence: 99%

Sustainable Public Transport Strategies—Decomposition of the Bus Fleet and Its Influence on the Decrease in Greenhouse Gas Emissions

2022

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“…Their conclusion, affirming that prefabrication is proficient in substantially reducing various waste types, and establishes its credibility as a sustainable approach within the construction sector. In a parallel vein, Wei et al (2022) examined the freight characteristics of C&D waste transport trucks and the associated carbon emissions, using a comprehensive data set from waste transport trips in Hong Kong, China. This study provides valuable insights into broader environmental considerations for CDWM.…”

Section: Environmental Impactmentioning

confidence: 99%

Utilizing intelligent technologies in construction and demolition waste management: From a systematic review to an implementation framework

Wu,

Pei,

Bao

et al. 2024

Front. Eng. Manag.

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The rapid increase in global urbanization, along with the growth of the construction industry, highlights the urgent need for effective management of construction and demolition (C&D) waste. Intelligent technologies offer a viable solution to this critical challenge. However, there remains a significant challenge in integrating these technologies into a cohesive framework. This study conducts a quantitative analysis of 214 papers from 2000 to 2023, highlighting the extensive use of artificial intelligence (AI) and building information modeling (BIM), along with geographic information systems (GIS) and big data (BD). A further qualitative analysis of 73 selected papers investigates the use of seven different intelligent technologies in the context of C&D waste management (CDWM). To overcome current limitations in knowledge, future research should concentrate on (1) the comprehensive integration of technology, (2) inclusive studies throughout all lifecycle phases of CDWM, and (3) the continued examination of new technologies, such as blockchain. Based on these insights, this study suggests a strategic framework for the effective implementation of intelligent technologies in CDWM. This framework aims to assist professionals in merging various technologies, undertaking lifecycle-wide research, and narrowing the divide between existing and new technologies. It also lays a solid foundation for future academic work to examine specific intelligent technologies, conduct comparative studies, and refine strategic decisions. Regular updates on technological developments are essential for stakeholders to consistently enhance CDWM standards.

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“…However, this impact of CW transportation is nonnegligible. Wei et al (2022) point out that there are many CW hauling trucks in operation and impose massive impact on the city's natural environment and transportation in Hong Kong. It is estimated that 307.64 tons CO 2 eq emitted on working days and 28.78 tons CO 2 eq on nonworking days.…”

Section: Papermentioning

confidence: 99%

Construction and demolition waste disposal charging scheme design

Chen

Yuan

et al. 2023

Computer aided Civil Eng

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Construction and demolition waste disposal charging is a critical component in construction waste (CW) management. Over the past few decades of implementation around the world, the effectiveness of waste disposal charging in decreasing negative environmental impact is gradually being questioned. This paper identifies two intertwined issues that have not attracted sufficient attention in actual practice. One is the consideration of contractors’ behavior, which is economically driven. Another is the influence of waste transportation, which is also a major stream of environmental pollution. These two aspects significantly affect the effectiveness of the waste disposal charging scheme. Contractors may not transport their generated CW to appropriate disposal facilities. They make decisions based on the disposal and transportation cost. To address this problem, this paper proposes a general construction and demolition waste disposal charging design methodology in which contractors’ behavior and the influence of waste transportation are taken into account. A mixed‐integer programming model is developed for the optimal design of the charging fees, which analytically formulates both of the abovementioned aspects. Furthermore, we developed a model that partially modifies the current charging scheme to better fulfill the environmental protection objective. Extensive numerical experiments demonstrate that the proposed methodology can effectively change contractors’ waste disposal decisions and significantly decrease the negative environmental impact of construction and demolition waste. This study contributes to a new perspective to better design the construction and demolition waste disposal charging scheme and has a wide range of applicability.

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Analyzing the Freight Characteristics and Carbon Emission of Construction Waste Hauling Trucks: Big Data Analytics of Hong Kong

Cited by 13 publications

References 51 publications

Sustainable Public Transport Strategies—Decomposition of the Bus Fleet and Its Influence on the Decrease in Greenhouse Gas Emissions

Sustainable Public Transport Strategies—Decomposition of the Bus Fleet and Its Influence on the Decrease in Greenhouse Gas Emissions

Utilizing intelligent technologies in construction and demolition waste management: From a systematic review to an implementation framework

Construction and demolition waste disposal charging scheme design

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