A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Urban Streetscape Changes in Portland, Oregon: A Longitudinal Virtual Audit
Streetscape imagery has considerable potential for observing urban change. The literature lacks sufficient longitudinal studies, however, on urban change considering human perception and activities. We conducted a longitudinal virtual audit to observe the change in urban liveliness, human activities, and built environment by examining streetscape imagery taken in the late 2000s and the late 2010s in Portland, Oregon. Eleven untrained crowd workers were recruited to provide liveliness ratings of 24, 242 streetscape images for both periods. Tabulation, mapping, and multilevel regression analyses were conducted to observe the distribution, changes in liveliness, and the factors affecting these changes. The results confirmed that the city had become livelier during the ten-year study period, which was spatially associated with the increase in pedestrians and cyclists and particular elements of the built environment, such as mid- and high-rise buildings and sidewalk signs. Although these results were somewhat expected, this study’s value lies in confirming the potential of virtual audits conducted using Google Street View Time Machine for retrospectively examining subjective and objective urban change. Caution should be exercised, though, while interpreting urban change as temporal conditions (e.g., season, weather, and irregular events) can potentially bias the results in longitudinal studies. ; 街景图像在观察城市变化方面具有相当大的潜力。然而, 文献缺乏基于人类感知和人类活动的城市变化纵向研究。我们进行了纵向虚拟审核, 研究了2000年代末和2010年代末在美国俄勒冈州波特兰市拍摄的街景图像, 观察了城市活力、人类活动和建成环境的变化。我们招募了11名未经培训的群众工作人员, 对这两个时期的24, 242张街景图像进行活力评级。通过制表、绘图和多层次回归分析, 观察了城市活力的分布和变化以及影响这些变化的因素。结果证实, 在此10年期间, 这座城市变得更加有活力。这种变化在空间上与行人和骑自行车者的增加和建成环境的特定元素有关(例如, 中高层建筑和人行道标志)。这些结果在一定程度上是意料之中的。本研究的价值是, 在回顾性地探讨城市的主观和客观变化中, 本文确认了通过谷歌街景时间机器进行虚拟审核的潜力。然而, 将城市变化解释为时间条件(例如, 季节、天气和不规则事件), 可能会带来纵向研究的偏差。 ; Las imágenes del paisaje callejero tienen un gran potencial en lo que concierne al cambio urbano. Sin embargo, la bibliografía relacionada con este tópico es pobre en estudios longitudinales suficientes sobre el cambio ...
Urban Streetscape Changes in Portland, Oregon: A Longitudinal Virtual Audit
Streetscape imagery has considerable potential for observing urban change. The literature lacks sufficient longitudinal studies, however, on urban change considering human perception and activities. We conducted a longitudinal virtual audit to observe the change in urban liveliness, human activities, and built environment by examining streetscape imagery taken in the late 2000s and the late 2010s in Portland, Oregon. Eleven untrained crowd workers were recruited to provide liveliness ratings of 24, 242 streetscape images for both periods. Tabulation, mapping, and multilevel regression analyses were conducted to observe the distribution, changes in liveliness, and the factors affecting these changes. The results confirmed that the city had become livelier during the ten-year study period, which was spatially associated with the increase in pedestrians and cyclists and particular elements of the built environment, such as mid- and high-rise buildings and sidewalk signs. Although these results were somewhat expected, this study’s value lies in confirming the potential of virtual audits conducted using Google Street View Time Machine for retrospectively examining subjective and objective urban change. Caution should be exercised, though, while interpreting urban change as temporal conditions (e.g., season, weather, and irregular events) can potentially bias the results in longitudinal studies. ; 街景图像在观察城市变化方面具有相当大的潜力。然而, 文献缺乏基于人类感知和人类活动的城市变化纵向研究。我们进行了纵向虚拟审核, 研究了2000年代末和2010年代末在美国俄勒冈州波特兰市拍摄的街景图像, 观察了城市活力、人类活动和建成环境的变化。我们招募了11名未经培训的群众工作人员, 对这两个时期的24, 242张街景图像进行活力评级。通过制表、绘图和多层次回归分析, 观察了城市活力的分布和变化以及影响这些变化的因素。结果证实, 在此10年期间, 这座城市变得更加有活力。这种变化在空间上与行人和骑自行车者的增加和建成环境的特定元素有关(例如, 中高层建筑和人行道标志)。这些结果在一定程度上是意料之中的。本研究的价值是, 在回顾性地探讨城市的主观和客观变化中, 本文确认了通过谷歌街景时间机器进行虚拟审核的潜力。然而, 将城市变化解释为时间条件(例如, 季节、天气和不规则事件), 可能会带来纵向研究的偏差。 ; Las imágenes del paisaje callejero tienen un gran potencial en lo que concierne al cambio urbano. Sin embargo, la bibliografía relacionada con este tópico es pobre en estudios longitudinales suficientes sobre el cambio ...
Urban Streetscape Changes in Portland, Oregon: A Longitudinal Virtual Audit
Hanibuchi, Tomoya (author) / Nagata, Shohei (author) / Banis, David (author) / Shobe, Hunter (author) / Nakaya, Tomoki (author) / 埴淵, 知哉
2024-03-01
1467-9272
Article (Journal)
Electronic Resource
English
virtual audit , 城市变化 , liveliness , Portland , 活力 , 街景 , auditoría virtual , vitalidad , paisajes callejeros , streetscapes , urban change , 波特兰 , 虚拟审核 , cambio urbano
DDC:
710
Online Contents | 1997
British Library Online Contents | 1997
Urban Streetscape Design and Crash Severity
| British Library Online Contents | 2015
| British Library Conference Proceedings | 2008
| NTIS | 1973