检查建筑环境与运行车辆的碳排放之间的关系:来自非线性模型的启发
Tao Wang1, Fangfang Du2, Keke Ding3
1Chongqing Transport Planning and Research Institute, Chongqing, 401120, China. wangtao_traffic@163.com.
Environmental science and pollution research international
|October 17, 2024
概括
城市交通碳排放受到建筑环境的重大影响. 公共汽车站和住房密度等关键因素减少了城市中心附近人口密集地区的车辆排放.
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:
- 城市交通是全球碳排放和气温上升的主要原因之一.
- 了解车辆排放的空间模式对于有效的气候政策至关重要.
研究的目的:
- 分析建筑环境对城市交通碳排放的影响.
- 通过先进的建模技术,确定影响深汽车排放的关键因素.
主要方法:
- 在深运行车辆轨迹数据中计算的碳排放量.
- 使用梯度增强回归树模型 (RF,XGBoost,LightGBM) 来评估建筑环境的影响.
- 使用XGBoost模型进行深入的因子分析和比较.
主要成果:
- 确定公交车站,十字路口,住房密度,地铁站和土地使用混合作为主要排放影响因素.
- 确定特定的建筑环境条件 (例如,道路密度高,接近城市中心,人口密度高) 显著减少车辆排放.
- 在分析城市形态和排放之间的复杂关系时,XGBoost模型被证明是有效的.
结论:
- 建筑环境在调节城市交通碳排放方面发挥着至关重要的作用.
- 针对特定关键因素的有针对性的城市规划策略可以有效地减轻与运输相关的碳足迹.
- 调查结果为制定可持续的城市交通政策提供了数据驱动的基础.
相关概念视频
Regression Analysis
5.6K
Regression analysis is a statistical tool that describes a mathematical relationship between a dependent variable and one or more independent variables.
In regression analysis, a regression equation is determined based on the line of best fit– a line that best fits the data points plotted in a graph. This line is also called the regression line. The algebraic equation for the regression line is called the regression equation. It is represented as:
In regression analysis, a regression equation is determined based on the line of best fit– a line that best fits the data points plotted in a graph. This line is also called the regression line. The algebraic equation for the regression line is called the regression equation. It is represented as:
5.6K
Calculating and Interpreting the Linear Correlation Coefficient
5.9K
The correlation coefficient, r, developed by Karl Pearson in the early 1900s, is numerical and provides a measure of strength and direction of the linear association between the independent variable, x, and the dependent variable, y. Hence, it is also known as the Pearson product-moment correlation coefficient. It can be calculated using the following equation:
5.9K
Thermodynamic Systems
5.0K
A thermodynamic system is a set of objects whose thermodynamic properties are of interest. The system is considered to be embedded in its surroundings or the environment. The system and its environment can exchange heat and do work on each other through a boundary that separates them. However, the immediate surroundings of the system interact with it directly and therefore have a much stronger influence on its behavior and properties.
Consider an example of tea boiling in a kettle. The...
Consider an example of tea boiling in a kettle. The...
5.0K
Energy Conservation and Bernoulli's Equation
8.7K
Applying the conservation of energy principle or the work-energy theorem to an incompressible, inviscid fluid in laminar, steady, irrotational flow leads to Bernoulli's equation. It states that the sum of the fluid pressure, potential, and kinetic energy per unit volume is constant along a streamline.
All the terms in the equation have the dimension of energy per unit volume. The kinetic energy per unit volume is called the kinetic energy density, and the potential energy per unit volume is...
All the terms in the equation have the dimension of energy per unit volume. The kinetic energy per unit volume is called the kinetic energy density, and the potential energy per unit volume is...
8.7K
Rolling Resistance: Problem Solving
300
Rolling resistance, also known as rolling friction, is the force that resists the motion of a rolling object, such as a wheel, tire, or ball, when it moves over a surface. It is caused by the deformation of the object and the surface in contact with each other, as well as other factors like internal friction, hysteresis, and energy losses within the materials. Rolling resistance opposes the object's motion, requiring additional energy to overcome it and maintain movement. In practical...
300
Linear Approximation in Frequency Domain
87
Linear systems are characterized by two main properties: superposition and homogeneity. Superposition allows the response to multiple inputs to be the sum of the responses to each individual input. Homogeneity ensures that scaling an input by a scalar results in the response being scaled by the same scalar.
In contrast, nonlinear systems do not inherently possess these properties. However, for small deviations around an operating point, a nonlinear system can often be approximated as linear....
In contrast, nonlinear systems do not inherently possess these properties. However, for small deviations around an operating point, a nonlinear system can often be approximated as linear....
87


