Traffic flow patterns severely impact vehicle carbon emissions. A field test was conducted in this study to obtain fuel consumption and traffic volume data under various explore the relationship between Carbon emission were obtained via indirect accounting method proposed by Intergovernmental Panel on Climate Change. prediction models for diesel trucks gasoline passenger cars established respectively with capacity ratio as an explanatory variable. The results show that emissions are highest...

Coal gangue sorting is a critical process in the clean production of coal. To address issues high computational complexity and deployment challenges coal object detection tasks, this paper proposes SML-Neck structure, which incorporates KernelWarehouse, LSK module, MPDIoU to enhance YOLOv8s, resulting lightweight SKL-YOLOv8s model. Experiments were conducted using self-constructed dataset comprising 14,790 images gangue. The experimental results demonstrate that proposed method surpasses...

The highway tunnel plays a critical role in traffic flow, yet its sections are particularly susceptible to accidents. research shows that the safety measures have certain effect on improving tunnel, but there is lack of evaluation methods for use tunnel. To study application tunnels (mainly strobe lights and information boards), this paper takes driver’s subjective feelings vehicle speed changes as indicators evaluate facilities. Xingshuliang Tunnel Shaanxi Province, which has been operated...

Crop models are important for understanding and regulating agroecosystems. Although the CERES-Wheat model is an tool winter wheat research, it has some limitations under water stress conditions. To narrow gap, this study aimed to improve performance of in arid semi-arid regions based on experimental data from 2012 2014. The Priestley–Taylor (PT) FAO56 Penman–Monteith (PM) equations were used calculate reference crop evapotranspiration further modified coefficient CERES simulation accuracy...

Owing to its mathematical elegance and empirical accuracy, the speed‐density model is critical in solving macroscopic traffic problems. This study developed an improved general‐logistic‐based model, which a new method flow theory. article extensively discusses properties of model. The physical meanings values all parameters were determined based on effect heavy vehicles for linear nonlinear regression analysis. accuracy versatility also found be excellent field data relative error.

Large vehicles impact the quality of traffic flow. To predict large-scale on average speed flow, vehicle speeds under different mixing rates were collected through field observations. A laser roadside survey instrument with automatic type identification functionality was used to collect cross section flow data. The <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" id="M1"><mml:mrow><mml:mrow><mml:mi>v</mml:mi><mml:mo>/</mml:mo><mml:mi>C</mml:mi></mml:mrow></mml:mrow></mml:math> ratio,...

Driving fatigue is one of the main causes traffic accidents. Thus, to prevent accidents and ensure safety, properties driving at wheel must be determined. The Qinghai–Tibet Plateau in China known for its high elevation, causing hypoxia, presence severely cold areas; all these easily lead during driving. This, turn, seriously affects safety on high-altitude highway. Therefore, factors leading influence affecting driver further studied. In this study, we classified quantified according degree....

Highways that cross natural reserves are an intrusion with a nonnegligible negative impact on the behavior of wild animals and have numerous diverse ecological impacts wildlife near road areas. Field experiments were carried out to collect traffic flow data Qinghai‐Tibet Highway Plateau, China, Tibetan antelope crossing highway was observed. The relationships between percentage antelopes successfully different flows analyzed. results demonstrate volume is main factor affecting success rate...

A new concept of Highway Node Acceptance Capacity (HNAC) is proposed in this paper inspired by a field data observation. To understand HNAC microscopic view, boundary condition successful merging found using car-following behaviours and lane-changing rules, which could also explain traffic oscillations. In macroscopic linear positive relationship between background volume obtained based on moving bottleneck. determine the explicit form relationship, simulation considering flow theory used....

The traffic noise on a highway with non-negligible negative impact the behavior of wild animals has great ecological wildlife near road area.To analyze Tibetan antelopes, field experiments were carried out to measure intensity and observe antelope within 500 m Qinghai-Tibet Highway from Kunlun Mountain Pass Wudaoliang Plateau, China.A relationship between different levels was established by data analysis.Traffic found have most significant effect 150 highway.The changes in before after...

The reduction in incident-induced delays on freeways is a main objective of transportation management. use travel time estimation model for freeway segments an important method estimating resulting from incidents freeways. In this study, with temporary partial lane closures were considered to simulate traffic accidents occupying lanes. Travel time, volumes, and speeds under various conditions few typical Chinese regular simulated accident investigated through field experiments. collected...

[Purpose] We attempted to explore the unique feature of volunteers' motivation in emergency events. [Method] Firstly, reliability and validity Volunteer Functions Inventory (VFI) was tested confirm its applicability Chinese participants. Secondly, differences between Sichuan earthquake volunteers other three kinds (Beijing Olympic Game volunteers, volunteer teacher candidates Beijing Paralympic volunteers) were found using ANOVA. [Results] The results showed that most important for events...

This research presents an operable zoning approach for phased evacuations adapted to disasters with spatio-temporal randomness. As a criterion prioritizing evacuation order, risk is formulated by taking into consideration the estimated residual horizon associated characteristics of disaster, time-dependent capacities outbound lanes related network supply, and demand unit. The modeling subzone determined based on rescue demand, labeled as high-risk zone (HEZ). range HEZ features time-evolving...

To reduce the impact of a natural or man-made disaster, an evacuation is often implemented to transfer population in potentially impacted area safe zone. Evacuation effective measure for dealing with emergency events. This paper presents multinomial logit model modal choice behavior short-notice evacuation, which incorporates spatial indicators into utility function. The study examined determinants evacuees’ three distances and analyzed impacting mechanism decision process. data collected...

Vehicles entering from on-ramps can increase the speed dispersion of mainline and induce frequent changing lanes or acceleration deceleration behaviors. These complex traffic behaviors interfere with on thus result in congestion safety issues. Reasonable management control ramps, especially on-ramps, has been proven to be an effective solution for caused by ramp flow. Understanding influence flow average freeway is useful creating strategies. In this study, field tests were employed gather...

In order to generate data on the burden of foodborne diseases in Shandong Province, we aimed use case monitoring from 2016 2017 estimate.Data were obtained disease surveillance reporting system with dates onset Jan 1, 2016, Dec 31, 2017, Shandong, China.The places food exposure categorized by settings as follows: private home, catering facility, collective canteens, retail markets, rural banquets and other. Exposed is divided into 23 categories. Overall incidence rate proportions categories,...

Distributed optical fiber temperature measurement technology could shield the interference of a strong electromagnetic field and apply to high voltage. From signal characteristics weak low signal-to-noise ratio, digital accumulate seeking arithmetic average queue filtering were used improve accuracy system, which achieved better test results.