Assessment of loose and adhered urban street sediments and trace metals: a study in the city of Poços de Caldas, Brazil

The article presents an analysis of positive practices for ensuring the safety of pedestrians at the inter-section of the city streets carriageway, as well as a description of some innovations of regulatory and tech-nical documents, including an increased number of cases when a safety island can be arranged at a pedestri-an crossing. requirements for providing visibility at a pedestrian crossing to determine the minimum distance of visibility at a pedestrian crossing based on the time required pedestrians for crossing the roadway, recommended options for using ground unregulated pedestrian crossings on trapezoidal artificial irregularities according to GOST R 52605; traffic flow) and Z-shaped (also in the direction of the traffic flow), the requirements for the size of the securi-ty island have been established to allow put bicycle inside of safety island, a recommended set of measures to reduce the vehicle speed and describes the types of activities and describes a method of their application, describes methods zones device with reduced travel speed - residential and school zones, set requirements for turboroundabouts and methods of their design.

Download Full-text

Magnetic properties and correlation with heavy metals in urban street dust: A case study from the city of Lanzhou, China

Atmospheric Environment ◽

10.1016/j.atmosenv.2011.09.059 ◽

2011 ◽

Cited By ~ 9

Author(s):

Guan Wang ◽

Frank Oldfield ◽

Dunsheng Xia ◽

Fahu Chen ◽

Xiuming Liu ◽

...

Keyword(s):

Heavy Metals ◽

Magnetic Properties ◽

Street Dust ◽

Urban Street ◽

Urban Street Dust ◽

The City

Download Full-text

The Development of Pompeii’s Urban Street Network

10.1093/oso/9780190614676.003.0002 ◽

2017 ◽

Author(s):

Eric E. Poehler

Keyword(s):

Urban Form ◽

Formal Analysis ◽

Street Network ◽

Urban Street ◽

Street Networks ◽

The City ◽

Present Understanding

Chapter 2 explores the present understanding of Pompeii’s evolution by disassembling the apparent patchwork of grids across the city and reconsiders the presumed awkwardness in their adhesion. To do this, the traditional tools of formal analysis—street alignments and block shapes—are employed with and critiqued by the stratigraphic evidence recovered in the last three decades of excavation below the 79 CE levels. The result is an outline of the development of Pompeii’s urban form as a series of street networks: from the archaic age, through the period of the “hiatus” of the fifth and fourth centuries BCE, to a reorganization of the city’s space so profound that it can genuinely be considered a refoundation, and finally to the adjustments of a refounded city in the Colonial, Augustan, and post-earthquake(s) periods.

Download Full-text

Activity size distribution of 7Be in association with trace metals in the urban area of the city of Thessaloniki, Greece

Atmospheric Environment ◽

10.1016/j.atmosenv.2010.12.006 ◽

2011 ◽

Vol 45 (6) ◽

pp. 1286-1290 ◽

Cited By ~ 23

Author(s):

Alexandra Ioannidou

Keyword(s):

Trace Metals ◽

Size Distribution ◽

Urban Area ◽

The City

Download Full-text

Urban Street Addressing: A Means for Managing Historic Urban Precincts of India

Journal of Heritage Management ◽

10.1177/2455929616683112 ◽

2016 ◽

Vol 1 (2) ◽

pp. 170-190

Author(s):

Rajdeep Routh ◽

Dhruma Bhavsar

Keyword(s):

Prospective Study ◽

Coding System ◽

Numbering System ◽

Urban Street ◽

The Road ◽

Old City ◽

The Difference ◽

Independence Era ◽

The City ◽

City Centres

The historic precinct of Ahmedabad has a numbering system that was put in place by colonial rulers and got followed in the post-Independence era. The growth of the city around the historic precinct as well as increase of population has led to a number of issues regarding the existing numbering systems. The demographic explosion has resulted in an undesired development within the historic precincts across various cities in India. Such a scenario has made the existing system redundant as the density of building fabric has increased, within the areas, leading to inconsistent numbering systems. While the road hierarchy as well as the numbering system outside the historic precinct differs from that of the old city, centres have led to the difference between the naming and numbering system of the roads inside and outside the old city area. Most of the streets, except the main, have no nomenclature; also, the streets with names have no particular logic or framework behind the naming system. The aim of this prospective study would be to understand and analyze the street addressing approaches and their benefits within the historic precincts, with a focus on the old core of Ahmedabad. The approach of the article would be to understand the various applications of street addressing, especially within historic precincts, and understand the benefits presented by the system. The article will end with the implementation of street addressing at Ahmedabad and what would be the phases of implementation. Furthermore, devising a sample coding system for a particular area of historic Ahmedabad would support this understanding.

Download Full-text

DEVELOPMENT OF VILNIUS STREET NETWORK/VILNIAUS GATVIŲ TINKLO FORMAVIMAS

Journal of Civil Engineering and Management ◽

10.3846/13921525.1996.10531656 ◽

1996 ◽

Vol 2 (7) ◽

pp. 54-59

Author(s):

Pranciškus Juškevičius

Keyword(s):

Development Strategy ◽

City Centre ◽

Network Development ◽

City Development ◽

Street Network ◽

Balanced Development ◽

Urban Street ◽

Network Expansion ◽

City Street ◽

The City

The planning of city street network expansion faces a new problem in Lithuania—indetermination of the city development. The model of street network and its loading has demonstrated the possible variant of relatively balanced development of urban street network. But in spite of this it does not close the increasing gap between the need for street network capacities and possibilities available. The main strategic trend in street network development is gradual forming the street network subsystem of the highest category. It should be supplemented by the reconstruction of the existing crossings as well as by creating new regulation equipment of high quality. One of the components of street network development strategy is the restriction of traffic and parking in the city centre and old town.

Download Full-text

Preliminary assessment of soil contamination by trace metals in peri-urban municipal landfills in Ibadan, Nigeria

F1000Research ◽

10.12688/f1000research.9673.1 ◽

2017 ◽

Vol 6 ◽

pp. 871 ◽

Cited By ~ 1

Author(s):

Benjamin Oyegbile ◽

Brian Oyegbile

Keyword(s):

Risk Assessment ◽

Trace Metals ◽

Waste Management ◽

Soil Contamination ◽

Landfill Site ◽

Emission Spectrometry ◽

Threshold Levels ◽

Landfill Sites ◽

The City ◽

Ibadan Nigeria

Background: Soil contamination by trace metals as a result of improper waste management and disposal in Ibadan, Nigeria has been evaluated in this study. Several studies have shown the link between trace metal soil contamination and improper solid waste disposal. Methods: Soil samples were taken from two major landfills in Ibadan, in the south-west of Nigeria, and subjected to laboratory analysis using inductively coupled plasma-optical emission spectrometry (ICP-OES) as part of a wider study to evaluate the waste management practices in the city. Results: The results of this investigation, without taking into account the background values of the trace metals at both landfill sites, showed that the quantified levels of lead at both sites exceeded threshold levels. The quantified values of zinc and copper metals exceeded the threshold levels specified in the Finnish government decree on the assessment of soil contamination and remediation needs, at 1098 mg/kg and 233.20 mg/kg in the Aba-Eku landfill site, and 1205 mg/kg and 476.55 mg/kg in the Lapite landfill site, respectively. This calls for a comprehensive risk assessment. Conclusions: It is hoped that the results of this study will serve as a basis for a wider risk assessment of all landfill sites within the city.

Download Full-text

Refusing relocation: Urban street vendors and the problem of the neoliberal device

Environment and Planning A Economy and Space ◽

10.1177/0308518x211061155 ◽

2021 ◽

pp. 0308518X2110611

Author(s):

James Christopher Mizes

Keyword(s):

High Price ◽

The Political ◽

Popular Politics ◽

Street Vendors ◽

Urban Street ◽

User Charges ◽

Planning And Design ◽

Political Effects ◽

The City ◽

Commercial Center

In 2010, the City of Dakar published its new master plan for a clean, competitive, modern city. This plan entailed the relocation of thousands of walking street vendors to free up traffic circulation and reduce the economic costs of congestion. Unlike previous relocations, this program required the political participation of vendor associations in the planning and design of a new commercial center. It also required the vendors to pay user charges: monthly payments for the use of the center and its utilities. Yet most Dakar's street vendors unequivocally refused to relocate, citing the building's poor location, bad design, and high price. Such user charges have become a contentious device with which governments across the world are financing the provision of public services. In this article, I analyze the politics of this device by tracing the linkages from Dakar's relocation program back to the political philosophies of prominent intellectuals commonly associated with “neoliberalism.” In doing so, I reveal how popular refusal is not beyond or opposed to a depoliticizing neoliberalism, but instead forms an integral part of neoliberal reflections on popular politics. I conclude by analyzing the political effects of this neoliberal device in Dakar: it introduced a new style of political engagement—consumption—through which individual vendors could dispute their relocation. And this individualized refusal to consume incited their representative associations to extend a popular mode of valuation—negotiation—into the calculation of the building's price.

Download Full-text