Simulating the co-emergence of urban spatial structure and commute patterns in an African metropolis: A geospatial agent-based model

2021 ◽  
Vol 110 ◽  
pp. 102343
Author(s):  
Ransford A. Acheampong ◽  
Stephen Boahen Asabere
2018 ◽  
Author(s):  
William Carleton ◽  
Andre Costopoulos ◽  
Mark Collard

Monuments are perplexing from a Darwinian perspective because building them diverts energy from survival and reproduction. In the late 1980s, Dunnell proposed a solution to this conundrum. He suggested that wasting energy confers an adaptive advantage in highly variable environments. This hypothesis has been used to explain several instances of monument building but it has only been evaluated once and that study suggested it is flawed. Here, we report a series of experiments in which we used an agent-based model to assess the hypothesis while taking into account two factors that could enhance the adaptiveness of waste—restricted agent movement and spatial structure in resource availability. Waste was strongly selected against in most of the experiments. Two experiments suggested that very restricted mobility can select for waste, but this effect disappeared when environmental variation increased from moderate to high. Thus, our experiments also suggest that the waste hypothesis is flawed.


Urban Studies ◽  
2017 ◽  
Vol 55 (5) ◽  
pp. 1013-1032 ◽  
Author(s):  
Helin Liu ◽  
Elisabete Silva

Much of the focus of research on creative industries’ influence upon urban land use has been around the investment in specific regeneration projects or flagship developments rather than addressing the nature and location of the infrastructure, networks and agents engaged. In other words, the complexity of the institutional/temporal and spatial interaction among the involved elements is overlooked or not well understood. This paper presents an agent-based model named CID-USST (Creative Industries Development-Urban Spatial Structure Transformation) that examines the dynamics of the interaction between the development of creative industries and urban spatial structure by outputting a set of adaptive scenarios through time and space. It reveals that the spatial distribution of both the creative firms and the creative workers evolves in a repeating up-and-down pattern even when the exogenous urban economic condition is set to be steady. Moreover, the analysis also points to the policy implication that more open job/rent market information will lead to more rapid geographical clustering of the creative firms and the creative workers, which possibly may reduce the time cost in their spatial evolvement, and perhaps accelerate innovation if we accept that geographical proximity can enhance knowledge and information spill-over.


2001 ◽  
Author(s):  
Minoru Tabata ◽  
Akira Ide ◽  
Nobuoki Eshima ◽  
Kyushu Takagi ◽  
Yasuhiro Takei ◽  
...  

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