Projects | Guan Li

Time Geography Analysis of Quality of Life

Fri, 26 Apr 2019 18:26:03 +0800

Through the analysis of time geography, results such as time allocation, rhythm of life, changes in activity spatio-temporal density, and spatio-temporal accessibility can also be obtained.

In this research, we used part of the cellular signaling data in Shanghai to analyze the quality of life in time geography, and found that the travel behaviors in different regions vary from each other and have certain rules. Residents’ travel trajectory analyzes the urban structure and obtains the characteristics of urban planning and rationalization of supply and demand.

Coupling Analysis of Quality of Life and House Prices

Fri, 15 Feb 2019 21:27:23 +0800

Quality of life (QoL) is an essential indicator of life. From the perspective of traffic engineering, this paper proposes the concept of living environment quality based on residents’ life perception, based on the accessibility of park green space, shopping, medical care, school, work, entertainment, community life, and other service facilities. The QoL calculation model is derived.

Based on the QoL model, combined with the case of Guangzhou, the case quality evaluation of residents’ life quality was carried out by this method, and the spatial quality of perceived quality of life was analyzed. From the QoL spatial distribution map of the young people in Guangzhou, the old Guangzhou urban area in the west of the central city still has the highest quality of life in Guangzhou. In addition, for the survey results, the differences in gender, age, and occupational level of residents’ preferences are also analyzed.

The spatial evaluation of QoL can reflect the current situation and existing problems of residents’ living environment. From the convenience and economy level, the area of most suitable housing in Guangzhou is roughly searched.

The Diagnosis System of Public Transportation

Fri, 27 Apr 2018 00:00:00 +0000

The reliability of bus operation is of great significance to the normal operation of bus lines and the service quality of residents’ travel. We established a two-step reliability evaluation method and developed a diagnosis system of public transportation of Shenzhen.

Step 1:

Comparing the bus travel time of the road section with the road section travel time of the whole road network, it can reflect the level of traffic conditions of the road section itself in the whole road network and the whole road section, so as to make a longitudinal comparison.

In this step, considering that the lengths of different road sections are different, if the direct comparison of road section travel time will result in inaccurate results, the unit distance travel time should be used for comparison. Therefore, in our research, the speed that can reflect the “travel time per unit distance” is used for characterization.

Step 2:

Comparing the bus travel time of the road section with the corresponding taxi travel time that can reflect the travel time of social vehicles, it can not only reflect the competitiveness and level gap of buses for social vehicles, but also easily reflect the bottleneck of the road section. Provide managers with key road sections to realize the “Bus 1.5” strategy; at the same time, for road sections where bus-only lanes have been built, it can also measure whether bus-only lanes can effectively improve bus operation efficiency.

This step involves two key issues. One is to select the appropriate travel time of buses and taxis during the comparison, that is, the definition of the corresponding operation quality level; the other is to fit the probability distribution of the frequency distribution of buses and taxis , thus echoing the reliability definition.

This project won Third Prize of the 17th Transportation Technology Competition of Tongji University.