Abstract
Electronic maps play an important role in the field of urban traffic management, but the interface functions provided by map service agencies are limited, and commercial maps are generally expensive. Furthermore, the map generation algorithms based on the Global Positioning System (GPS) data can be very complex and take up a lot of storage space, which limits their application to specific practical problems, such as the real-time update of area maps, temporary road control, emergency route planning, and other scenarios. In order to solve this problem, an intuitive, extensible, and flexible method of constructing urban road maps is proposed. Using the Othello-coordinated method, the representation of the unit grid cell was redesigned. Through this method, the disadvantages of the raster map’s large storage space and computing resource requirements are compensated for during processing, improving the topological expression ability of the raster map and the speed with which the construction of the map is realized. The application potential of the proposed method is demonstrated by the evaluation of public transport service and road network resilience. In our experiments, the optimization efficiency of storage space was up to 99.914%, and the calculation accuracy of bus coverage was about 99.86%.
Highlights
Accepted: 29 November 2021City resilience, which refers to the defense and restoring ability of a city to face emergencies and long-term unfavorable pressure, plays a vital role in modern city construction [1]
In order to address the aforementioned problems leading to long update cycles that delay many digital maps and prevent timely and accurate representations of fast-changing local conditions, we propose a fast-constructing method of urban road maps based on Global Positioning System (GPS)
The data used in this work were selected from the GPS data of Qitaihe bus operation on 27 January 2018, and include a total of 192,464 groups of nonrepetitive longitude and latitude coordinate points
Summary
Accepted: 29 November 2021City resilience, which refers to the defense and restoring ability of a city to face emergencies and long-term unfavorable pressure, plays a vital role in modern city construction [1]. One major key to building a resilient modern city is to enhance the resilient construction of urban transport infrastructure [2,3]. The world-wide spreading Novel Coronavirus Pneumonia (NCP) has deeply affected many facets of people’s lives, especially through the shutting down of public transportation, restricting people’s mobility, and intensifying the closed community management necessary for the control of the epidemic. All these issues have tested the transport resilience of different cities. As the carrier of city operations, a transport system materially guarantees the interaction between the city and the outside world as well as the city’s internal maintenance and effectiveness, while the road network is the material basis of the entire transport system [1,2,3]
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