Renewed Commitment to Traffic Calming for Pedestrian Safety

Author(s):  
Sheila Sarkar ◽  
A. A. Jan Nederveen ◽  
Albert Pols

Success of road design depends to a large extent on how safe it is for different users. Unfortunately, in most instances the definition of road users in the United States has precluded pedestrians and bicyclists. Safety of pedestrians and bicyclists is most often relegated to a marginal status in many parts of the urban areas. The roads in the past few decades, with a few exceptions, were built for speed, ensuring maximum convenience to drivers, but, intimidating the green modes (pedestrians and bicyclists). Traffic calming is one way of reclaiming the roads for a more equitable use by different users. Many European countries have been successful in giving back the road to the pedestrians and bicyclists by implementing areawide traffic management and speed-reduction measures. The United States, however, is far behind these countries in actual implementation of such concepts, although thinking on these lines had started as early as the 1960s. There is a strong argument in favor of traffic calming in the United States based on facts and figures on accidents, road conditions, and driver behavior. In addition, field research in some European countries reveals the positive attributes of these planning principles and designs.

Energies ◽  
2020 ◽  
Vol 13 (20) ◽  
pp. 5244
Author(s):  
Alicja Sołowczuk ◽  
Dominik Kacprzak

In recent decades traffic calming, especially in villages situated on through roads, has become an urgent issue. Various schemes are applied in the transition zones to reduce the inbound traffic speeds and thus improve the traffic safety. The studies conducted in several countries point to different determinants of the speed reduction obtained in this way. This article deals with the schemes including a central island horizontally deflecting one lane, located in transition zones to villages with 70 km/h speed restriction on two-lane roads (6 m carriageway width). In order to identify the speed reduction determinants, the speeds before and after chicanes were measured and the effect of the three criteria was investigated, characterising: the traffic management scheme, road design parameters, landscape elements present in the surroundings of the transition zone and visibility conditions. Based on the confirmation of logical tautology of many pre-selected factors, one aggregate parameter was proposed for the assessment of the practicable level of speed reduction, combining the effect of the selected factors in the above-mentioned criteria. Statistical analysis of the obtained results confirmed a statistically significant relationship between both the speed reduction value and the speed reduction index, and the aggregate parameter proposed by the authors. Factors related to the surrounding landscape and visibility conditions were found to have the greatest direct effect on speed reduction. The chicanes chosen in the final step of the proposed design process should be enhanced by additional solar-powered elements ensuring their improved visibility. These devices should not, however, require any additional energy supply and should not increase the construction or maintenance costs.


1994 ◽  
Vol 21 (1) ◽  
pp. 255-273 ◽  
Author(s):  
Onker N. Basu

In accounting research, the role of organizational leaders has been underrepresented. The limited research dealing with leadership issues has focused on the impact of leadership on micro activities such as performance evaluation, budget satisfaction, and audit team performance. The impact of leadership on the structure of accounting and audit systems and organizations has been ignored. This paper focuses on the impact that past Comptrollers General have had on the working and structure of one federal audit agency, the United States General Accounting Office (GAO). In addition, it also focuses on the influence of the two most recent Comptrollers General on one important audit related activity, i.e., the audit report review process. Using qualitative field research methods, this paper documents how the organizational leadership impacts its long-term audit practices and thereby influences auditing, especially in the public sector.


Author(s):  
Thierry Brenac

This paper deals with safety at horizontal curves on two-lane roads outside urban areas and the way the road design standards of different European countries account for this safety aspect. After a review of some research results, the main aspects of curve geometry and the curve's place in the horizontal alignment are analyzed. The main conclusions are that the traditional design speed approach is insufficient and that formal complementary rules in road design standards, especially to improve compatibility between successive elements of the alignment, must be introduced. If such complementary rules already exist in some national standards, they are neither frequent nor homogeneous throughout the different countries, and it seems that they are not based on sufficiently developed knowledge.


2004 ◽  
Vol 11 (2) ◽  
pp. 11-23 ◽  
Author(s):  
Sue Lovell

In January 1967 Janette Turner Hospital left Queensland for Boston. She was unpublished. 25 years of age, and very much the product of a loving but fundamentalist childhood that she understood as the ‘source of all comfort and security, but also the source of all harm’. She has called America. India. Canada and France ‘home’ and has also frequently taught in other European countries. Although she has two adult children who have made their lives in the United States and Canada, her parents and three younger brothers remain in Brisbane, so she returns regularly to sustain family ties.


Author(s):  
Glenn Vorhes ◽  
Ernest Perry ◽  
Soyoung Ahn

Truck parking is a crucial element of the United States’ transportation system as it provides truckers with safe places to rest and stage for deliveries. Demand for truck parking spaces exceeds supply and shortages are especially common in and around urban areas. Freight operations are negatively affected as truck drivers are unable to park in logistically ideal locations. Drivers may resort to unsafe practices such as parking on ramps or in abandoned lots. This report seeks to examine the potential parking availability of vacant urban parcels by establishing a methodology to identify parcels and examining whether the identified parcels are suitable for truck parking. Previous research has demonstrated that affordable, accessible parcels are available to accommodate truck parking. When used in conjunction with other policies, adaptation of urban sites could help reduce the severity of truck parking shortages. Geographic information system parcel and roadway data were obtained for one urban area in each of the 10 Mid America Association of Transportation Officials region states. Area and proximity filters were applied followed by spectral analysis of satellite imagery to identify candidate parcels for truck parking facilities within urban areas. The automated processes created a ranked short list of potential parcels from which those best suited for truck parking could be efficiently identified for inspection by satellite imagery. This process resulted in a manageable number of parcels to be evaluated further by local knowledge metrics such as availability and cost, existing infrastructure and municipal connections, and safety.


2012 ◽  
Vol 8 (2) ◽  
pp. 161-172 ◽  
Author(s):  
Rowland Atkinson ◽  
Oliver Smith

The move to gated communities has been linked to both rising affluence and anxiety. These attempts to withdraw from the perceived dangers of urban areas are also predicated on the pursuit of a neighbourhood ideal, and freedom from danger is usually central to this ideal. This paper critically reconsiders these propositions by examining news reports and media narratives surrounding the nature of homicidal violence occurring within such developments. We have analysed fifty news reports from the last decade that address murder committed inside gated communities. In our analysis of these reports we suggest that attempts to neutralise danger in high crime societies are by no means guaranteed—even via the most strenuous efforts at deploying walls, gates and guards. Building on the arguments of Low (2003) and Zedner (2003), we suggest that demands for security are not only unending but that an outward-facing orientation that positions risk outside gated neighbourhoods is a denial of the continued danger of intimate and other forms of violence within communities and households behind gates. In this context the move to enclosure is more than a pragmatic attempt to defend against threat; it appears to reflect the impotence of efforts associated with addressing deep ontological insecurities. Studies continue to record high levels of fear in gated developments, and highly gendered risks of violence continue to be a part of the social reality of the segregated neighbourhood.


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