A comparative study of Lane Change Assistance Protocols at Road Network

Author(s):  
Maram Bani Younes
2020 ◽  
Author(s):  
Kai Yang ◽  
Xiaolin TANG ◽  
Yechen Qin ◽  
Yanjun Huang ◽  
Hong Wang ◽  
...  

Abstract A comparative study of model predictive control (MPC) schemes and robust A state feedback control (RSC) method for trajectory tracking, is proposed in this paper. Both MPC-based and RSC-based tracking controllers are designed on the basis of a 3-DOF vehicle model, including longitudinal, lateral and yaw motions. The main objective of this paper is to compare both controllers’ performance in tracking expected trajectory under different scenarios. Therefore, three cases, namely, verification test, double lane change test and curve test, were built in Carsim-Simulink joint platform. The simulation results indicate that MPC controller performed better in terms of accuracy and responding time under well driving conditions. However, in the test of double lane change manoeuvre where the road adhesion was set as 0.2, the maximum velocity RSC can execute was 14m/s, while that for MPC was 10m/s. In addition, in the curve test, the maximum velocity MPC can carry out was only 9m/s and that for RSC was 12m/s. In conclusion, RSC was robust and stable when the driving conditions was worse, while MPC was prone to be unstable.


2010 ◽  
Vol 108-111 ◽  
pp. 95-99
Author(s):  
Rui Li ◽  
He Bing ◽  
Jing Hua Song

A comparative method for studying road network based on GIS will be proposed in this paper, in which Axwoman is involved as an ArcView extension for urban morphological analysis. Finally, the case of Nanyang city is applied to show the expansion of road network in 1984, 1996 and 2008, by comparing the changes of global integration value, local integration value and connectivity value of whole city, special roads and different sub-areas respectively.


2013 ◽  
Vol 409-410 ◽  
pp. 855-860
Author(s):  
Xin Yu Hu ◽  
Yi Shi ◽  
Jun Yan Yang

This paper selects typical center districts were colony in China’s modern history as cases,and then comparing these centers’ space morphology using both quantitative and qualitative ways from four aspects: common characteristics, land development strength characteristics, land-use structure characteristics, road-network structure characteristics. Author analysis the similarities of these center districts that they always adjacent to the traffic hub, form commercial aggregation mode and have more clear road structure . Author analysis the differences of these center districts that they could form different modes in the four aspects above. This paper finds out these laws, for supporting the further construction guidance of colonial style center district.


Author(s):  
S. Azimjon ◽  
P. K. Gupta ◽  
R. S. G. S. Sukhmani

Automated generalization, rooted from conventional cartography, has become an increasing concern in both geographic information system (GIS) and mapping fields. All geographic phenomenon and the processes are bound to the scale, as it is impossible for human being to observe the Earth and the processes in it without decreasing its scale. To get optimal results, cartographers and map-making agencies develop set of rules and constraints, however these rules are under consideration and topic for many researches up until recent days. Reducing map generating time and giving objectivity is possible by developing automated map generalization algorithms (McMaster and Shea, 1988). <br><br> Modification of the scale traditionally is a manual process, which requires knowledge of the expert cartographer, and it depends on the experience of the user, which makes the process very subjective as every user may generate different map with same requirements. However, automating generalization based on the cartographic rules and constrains can give consistent result. Also, developing automated system for map generation is the demand of this rapid changing world. <br><br> The research that we have conveyed considers only generalization of the roads, as it is one of the indispensable parts of a map. Dehradun city, Uttarakhand state of India was selected as a study area. The study carried out comparative study of the generalization software sets, operations and algorithms available currently, also considers advantages and drawbacks of the existing software used worldwide. Research concludes with the development of road network generalization tool and with the final generalized road map of the study area, which explores the use of open source python programming language and attempts to compare different road network generalization algorithms. <br><br> Thus, the paper discusses the alternative solutions for automated generalization of linear objects using GIS-technologies. Research made on automated of road network generalization, which is summarized in this paper, was conducted in IIRS, Dehradun, India.


Sign in / Sign up

Export Citation Format

Share Document