No Stump City: The Contestation and Politics of Urban Street-Trees – A Case Study of Sheffield

According to the international technical standards, higher lighting levels (luminance and illuminance levels) are expected in trafficked and central roads (where restrictive minimum lighting requirements are necessary) and lower lighting levels are expected in peripheral and less trafficked roads. Starting from this assumption, in this paper, the authors analyse the correlations between spatial properties (expressed by spatial indicators, for example, the integration index and the choice index) and lighting levels (expressed by lighting parameters, for example luminance and illuminance) upon roads of an urban context. The analysis has been applied to the case study of the medium sized town of Pontedera (central Italy). From the obtained results, it has been possible to observe how the correlations between integration index and luminance and illuminance values are significant in the case of roads equipped with lighting systems able to satisfy the lighting requirements established by the regulations. The presence of the discussed correlations lays the foundation for a change in the lighting design approach on urban scale, being able to set lighting requirements on the basis of space syntax results without the use of traditional methods of road classifications involving traffic volume estimations.

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Outdoor Thermal Comfort: Impact of the Geometry of an Urban Street Canyon in a Mediterranean Subtropical Climate – Case Study Tunis, Tunisia

Procedia - Social and Behavioral Sciences ◽

10.1016/j.sbspro.2015.12.062 ◽

2016 ◽

Vol 216 ◽

pp. 689-700 ◽

Cited By ~ 27

Author(s):

Safa Achour-Younsi ◽

Fakher Kharrat

Keyword(s):

Thermal Comfort ◽

Street Canyon ◽

Outdoor Thermal Comfort ◽

Subtropical Climate ◽

Urban Street Canyon ◽

Urban Street

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De-commemoration of an urban street in Egypt: the case of Gameat-Aldowel-Alarabyia street

International Journal of Architectural Research Archnet-IJAR ◽

10.1108/arch-02-2019-0042 ◽

2019 ◽

Vol 13 (2) ◽

pp. 459-474 ◽

Cited By ~ 2

Author(s):

Mona A. Abdelwahab

Keyword(s):

Urban Space ◽

Content Type ◽

Street Design ◽

Urban Street ◽

Everyday Activities ◽

Lay People ◽

The Everyday ◽

Urban Institution ◽

Naguib Mahfouz

PurposeThe purpose of this paper is to explore the “event” of the construction of Naguib Mahfouz Square. Drawing on the memory of Gamaet-Aldowel-AlArabyia Street, it attempts to uncover the socio-cultural structures inherited in the Egyptian urban street.Design/methodology/approachThis study adopts Foucauldian discourse on institutions of “knowledge and authority” to approach the power relations between the actors involved. This discourse was constructed through in-depth, unstructured interviews with architects and involved government personnel as well as other archival resources that included national newspapers and magazines.FindingsThis discourse reflected an institutional controversy between these actors over the perception and design of the Egyptian street, highlighting the alienation of the designer, and the user/lay-people, from the urban institution. Naguib Mahfouz Square presented a considerable deviation from the established norms of street design in Egypt at that time through its commemoration of a contemporary figure in literature, the architect’s involvement in the design process and the unfencing of urban space. This event thus questions the perception of the urban street beyond our socio-cultural inheritance, and towards street design as a performative urban act that embraces the everyday activities of lay-people in the street.Originality/valueThe paper utilises Foucauldian discourse on power to approach a case study of an urban event and space in Egypt, which has not previously been investigated thoroughly. It thus holds potential towards the resolution of inherited conflict between the urban street and the urban institution.

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Mobile Terrestrial Photogrammetry for Street Tree Mapping and Measurements

Forests ◽

10.3390/f10080701 ◽

2019 ◽

Vol 10 (8) ◽

pp. 701 ◽

Cited By ~ 1

Author(s):

John Roberts ◽

Andrew Koeser ◽

Amr Abd-Elrahman ◽

Benjamin Wilkinson ◽

Gail Hansen ◽

...

Keyword(s):

Point Cloud ◽

Coordinate Systems ◽

Street Trees ◽

Urban Street ◽

Tree Management ◽

Tree Inventory ◽

Street Tree ◽

Wide Scale ◽

Individual Trees ◽

Urban Sites

Urban forests are often heavily populated by street trees along right-of-ways (ROW), and monitoring efforts can enhance municipal tree management. Terrestrial photogrammetric techniques have been used to measure tree biometry, but have typically used images from various angles around individual trees or forest plots to capture the entire stem while also utilizing local coordinate systems (i.e., non-georeferenced data). We proposed the mobile collection of georeferenced imagery along 100 m sections of urban roadway to create photogrammetric point cloud datasets suitable for measuring stem diameters and attaining positional x and y coordinates of street trees. In a comparison between stationary and mobile photogrammetry, diameter measurements of urban street trees (N = 88) showed a slightly lower error (RMSE = 8.02%) relative to non-mobile stem measurements (RMSE = 10.37%). Tree Y-coordinates throughout urban sites for mobile photogrammetric data showed a lower standard deviation of 1.70 m relative to 2.38 m for a handheld GPS, which was similar for X-coordinates where photogrammetry and handheld GPS coordinates showed standard deviations of 1.59 m and the handheld GPS 2.36 m, respectively—suggesting higher precision for the mobile photogrammetric models. The mobile photogrammetric system used in this study to create georeferenced models for measuring stem diameters and mapping tree positions can also be potentially expanded for more wide-scale applications related to tree inventory and monitoring of roadside infrastructure.

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