评估运输规划因素对出租车CO2排放的空间影响
Zhipeng Peng1, Jiahui Zhao2, Hao Ji3
1Lecturer, School of Economics and Management, Xi'an Technological University, Xi'an 710021, China.
The Science of the total environment
|December 22, 2024
概括
运输活动显著影响二氧化碳 (CO2) 排放. 这项研究揭示了出租车旅行模式和城市因素如何影响中国西安的二氧化碳排放,帮助制定有针对性的减排战略.
科学领域:
- 环境科学 环境科学
- 城市规划 城市规划
- 运输工程 运输工程
背景情况:
- 运输活动是全球二氧化碳 (CO2) 排放的主要来源.
- 中国在运输部门的二氧化碳排放方面面临重大挑战.
- 有效的减排策略需要了解空间模式和影响因素.
研究的目的:
- 分析中国西安出租车二氧化碳排放的空间分布和影响因素.
- 确定不同的行程模式和城市特征如何影响出租车相关的二氧化碳排放.
- 为制定城市地区有针对性的减排战略提供见解.
主要方法:
- 西安的空间细分为500米×500米的网格,用于二氧化碳排放分析.
- 隐藏的迪里克莱特分配 (LDA) 模型用于提取出租车行程模式.
- 地理加权回归 (GWR) 模型用于评估影响因素的空间影响.
主要成果:
- 发现出租车行程模式显著影响二氧化碳排放.
- 道路网络密度和POI密度等因素对排放产生了不同的积极和消极影响.
- 不同因素对二氧化碳排放的影响在整个研究区域显示出显著的空间异质性.
结论:
- 旅行模式是出租车二氧化碳排放的一个关键决定因素.
- 城市特征和旅行行为有动态的相互作用,从而影响空间排放.
- 调查结果支持为城市交通制定本地化和精细化的排放管理政策.
相关概念视频
Factorial Design
13.0K
Factorial Analysis is an experimental design that applies Analysis of Variance (ANOVA) statistical procedures to examine a change in a dependent variable due to more than one independent variable, also known as factors. Changes in worker productivity can be reasoned, for example, to be influenced by salary and other conditions, such as skill level. One way to test this hypothesis is by categorizing salary into three levels (low, moderate, and high) and skills sets into two levels (entry level...
13.0K
Carbon Dioxide Transport in the Blood
1.6K
Carbon dioxide (CO2) transport in the blood is critical to human physiology. On average, our body cells produce around 200 mL of CO2 per minute, precisely the quantity expelled by the lungs. This process involves the transportation of CO2 from the tissue cells to the lungs in three primary forms.
Forms of CO2 Transport
1. Dissolved in plasma: A small percentage (7-10%) of CO2 is transported and dissolved directly in the plasma.
2. Carbaminohemoglobin: Just over 20% of CO2 is chemically bound to...
Forms of CO2 Transport
1. Dissolved in plasma: A small percentage (7-10%) of CO2 is transported and dissolved directly in the plasma.
2. Carbaminohemoglobin: Just over 20% of CO2 is chemically bound to...
1.6K
Social Traps
22.3K
Social traps are negative situations where people get caught in a direction or relationship that later proves to be unpleasant, with no easy way to back out of or avoid. The concept was orignally introduced by John Platt who applied psychology to Garrett Hardin's "Tragedy of the Commons", where in New England herd owners could let their cattle graze in the common ground. This situation seems like a good idea, but an individual could have an advantage. If they owned...
22.3K
Probability Histograms
11.1K
A probability histogram is a visual representation of a probability distribution. Similar a typical histogram, the probability histogram consists of contiguous (adjoining) boxes. It has both a horizontal axis and a vertical axis. The horizontal axis is labeled with what the data represents. The vertical axis is labeled with probability. Each rectangular bar in the histogram is 1 unit wide, which suggests that the area under each bar equals the probability, P(x), where x is 1, 2, 3, and so on.
11.1K
Hypothesis Test for Test of Independence
3.5K
The test of independence is a chi-square-based test used to determine whether two variables or factors are independent or dependent. This hypothesis test is used to examine the independence of the variables. One can construct two qualitative survey questions or experiments based on the variables in a contingency table. The goal is to see if the two variables are unrelated (independent) or related (dependent). The null and alternative hypotheses for this test are:
H0: The two variables (factors)...
H0: The two variables (factors)...
3.5K
Sampling Plans
167
Sampling is a crucial step in analytical chemistry, allowing researchers to collect representative data from a large population. Common sampling methods include random, judgmental, systematic, stratified, and cluster sampling.
Random sampling is a method where each member of the population has an equal chance of being selected for the sample. It involves selecting individuals randomly, often using random number generators or lottery-type methods. For example, when analyzing the properties of a...
Random sampling is a method where each member of the population has an equal chance of being selected for the sample. It involves selecting individuals randomly, often using random number generators or lottery-type methods. For example, when analyzing the properties of a...
167


