Hiroyuki Usui Ph.D. in Engineering

 
 
Assistant Professor
Department of Urban Engineering, School of Engineering, The University of Tokyo.
 


Specialization

-Residential Environment

-Urban Morphology

-Urban Analysis

-Spatial Analysis

-Geographical Information Science (GIScience)

Photo taken in the Northern region of Nagano prefecture.   
20120902.   

Research objective

Urban space consists of various physical components, e.g., road networks, urban blocks, plots, buildings and so on, which have various patterns and shapes. From the point of view of bottom-up approach (local scale), their patterns and shapes can be seen as the set of physical components. On the other hands, they can also be seen as the result of  'plane segmentation' from the point of view of top-down approach (global scale), e.g., urban blocks can be seen as the result of segmentation by road networks. To understand our urban space more deeply, we need to develop 'tools' from both local and global scale. As Dr. Eika Takayama, one of the pioneers of Japanese urban planners, suggests in his doctoral dissertation, I believe that the concept of 'density' is the key to do so. I will try to derive more implications on the characteristics of urban physical components by using the key concept as the tool for understanding and improving our urban space.  


Leslie Martin gives us meaningful suggestions in his essay, 'The grid as generator' published in 1972, which inspire us today. I will quote some suggestions from his essays: 

'The grid of streets and plots from which a city is composed, is like a net placed or thrown upon the ground. This might be called the framework of urbanization.' (p.10)

'The understanding of the way the scale and pattern of this framework, net or grid affects the possible building arrangements on the land within it, is fundamental to any reconsideration of the structure of existing towns.(p.10)

'The theoretical understanding of the interaction between the grid and the built form is therefore fundamental in considering either existing towns or the developing metropolitan regions.' (p.18)



Recent Activities


2016.3.5                     津別町まちづくりアイデアコンペ@北海道網走郡津別町にて審査員を務めました.詳細はコチラ

2016.12.5                   リスク工学研究会@筑波大学にて講演をしました.

2016.12.10                  Utalk@東京大学にて話題提供をしました.詳細はコチラ

2017.4.1                     科研費(若手研究B)に採択されました.都市の縮退を評価する理論を構築し,政策評価に貢献します.


Education


2007.3                       College of Policy and Planning Sciences, University of Tsukuba (B.A. in Policy and Planning Sciences).

2009.9                       Department of Urban Engineering, The University of Tokyo (M.E. in Engineering).

2014.2                       Department of Urban Engineering, The University of Tokyo (Ph.D. in Engineering).



Dissertation title


Model analysis of lot shapes and density of buildings and roads:

Based on principle of one lot for one building and grid road network pattern
                                    

敷地形状と建物棟数密度及び道路延長密度に関するモデル分析

一敷地一建物の原則及び格子状の道路網パターンに基づいて



Working Experience


2010.4-2015.12          Ministry of Land, Infrastructure, Transport and Tourism, Government of Japan.

2016.1-2016.5            Assistant Professor (Project), Department of Urban Engineering, School of Engineering, The University of Tokyo.

2016.6-present           Assistant Professor, Department of Urban Engineering, School of Engineering, The University of Tokyo.  



Teaching

2007.1                       Teaching Assistant of Geographical Information Systems (GIS) Exercising.

2008.1                       Teaching Assistant of Geographical Information Systems (GIS) Exercising.

2009.1                       Teaching Assistant of Geographical Information Systems (GIS) Exercising.

2016.4-                      都市工学演習A,都市工学設計製図.



Academic Service

2008-                         Member, City Planning Institute of Japan (CPIJ).

2008-                         Member, Operations Research Society of Japan (ORSJ).

2008-                         Member, GIS Association of Japan (GISA).

2009-                         Member, Architectural Institute of Japan (AIJ).

2009-                         Member, Association of Urban Housing Sciences.



Awards

2009.10                      Student's Outstanding Presentation Award, from GIS Association of Japan.

2010.3                        Outstanding Master's Thesis Award, from Association of Urban Housing Sciences.

2010.5                        Repayment Exemption for Students with Excellent Grades, Japan Student Services Organization Type I (interest-free) 

2012.5                        Best Report of Economic Theory in 2011, from College of Land, Infrastructure, Transport and Tourism.

2014.11                      Promising Young Research Award, from GIS Association of Japan.

2015.5                        Promising Young Research Award, from City Planning Institute of Japan



研究助成(研究代表者)

2017.4-2020.3             日本学術振興会科学研究費,若手研究(B),物的な都市密度に基づく客観的な既成市街地の画定方法の構築及び市街地縮退の評価.


研究助成(研究分担者)

2017.4-2021.3             日本学術振興会科学研究費,基盤研究(A),時空間情報の次世代分析ツールボックスの開発と応用