CORREDORES URBANOS COMO CONECTORES DE VIDA PÚBLICA. DIAGNÓSTICO DE LOS CORREDORES URBANOS CENTRALES EN LA AVENIDA 24 DE MAYO, AZOGUES

El cambio de modelo urbano asumido durante el siglo XX, trajo un sinnúmero de problemas como la priorización del vehículo, por lo que en la última década han surgido esfuerzos para dotar de importancia al ciudadano de a pie, en el espacio público. Esta investigación estudió las condiciones físico-espaciales de un corredor urbano donde el modelo centrado en el vehículo se acentúa, con la fnalidad de generar posibles estrategias que reviertan esta situación. Se tomó como caso de estudio a la Av. 24 de Mayo, en Azogues, y se lo analizó mediante una metodología mixta, que evaluó, detalladamente, tres zonas de estudio, determinando que la falta de accesibilidad y conectividad y el modelo de movilidad defendido por la ciudadanía, en general, infuyen directamente en las condiciones del espacio público peatonal y por ende en la habitabilidad urbana, perjudicando los desplazamientos a pie. Palabras clave: Espacio público; habitabilidad urbana; conectividad; accesibilidad; percepción. AbstractThe change of urban model assumed during the 20th century, brought countless problems such as the prioritization of vehicles, so in the last decade eforts have emerged to give importance to the citizen on foot in the public space. This original research studied the relationship of urban habitability with the physical-spatial conditions of an urban corridor, where the vehicle-centered model is accentuated, to generate possible strategies to reverse this situation. The Av. 24 de Mayo in Azogues was taken as a case study and analyzed using a mixed methodology that evaluated in detail three study areas, determining that the lack of accessibility and connectivity and the mobility model defended by citizens in general have a direct infuence on the conditions of the pedestrianpublic space and, therefore, on urban habitability, which afects walking Keywords: Public space; urban habitability; connectivity; accessibility; perception.

Evaluation of the Use of a Road Diet Design: An Urban Corridor Case Study in Washington, DC

A traditional road diet design converts a four-lane two-way road to a three-lane road consisting of two through lanes and a center two-way left turn lane. This paper introduces a new application of the road diet design in an urban corridor. Specifically, the new application converts a four-lane two-way road into a two-lane two-way road with full-time parking lanes in both directions. The paper analyzed the traffic impacts of the road diet application on the corridor of New Jersey Avenue, northwest, in the city of Washington, District of Columbia. The corridor included five signalized and one unsignalized intersections. Before-and-after analyses using Synchro 11 simulation and Site-Specific Empirical Bayes analysis were used to evaluate and compare existing and proposed scenarios. The proposed scenario provided various benefits including offering accessibility to the businesses in the area and acting as a traffic calming strategy. For signalized intersections, the overall performance remained the same for most intersections except for one intersection (on P Street), as it is significantly impacted by the road diet design due to the dramatic increase of traffic volumes in its minor streets as a result of diverting traffic volumes from the unsignalized intersection for left and through movements. Results showed that the use of a road diet design enhanced the unsignalized intersection performance due to the traffic volume divergence from its minor streets and enhanced the safety of the study area by decreasing the annual number of predicted crashes. To achieve better operational benefits and reflect traffic demands, the paper recommends to re-optimize signal timings when a road diet design is adopted.

Translating risk to preventable burden by estimating numbers of bicycling injuries preventable by separated infrastructure on a Toronto, Ontario corridor

Objectives: Bicycling is a form of active transportation with a number of health benefits but carries a high risk of injury compared to other transportation modes. Safety intervention evaluations often produce results in the form of ratios, which can be difficult to communicate to policy-makers. The primary objective of this study was to estimate the number of bicycling injuries on an urban corridor preventable by separated bicycling infrastructure. Methods: Stakeholders identified a key corridor with multiple segments having bicycling infrastructure but most of the corridor lacking similar infrastructure. We counted bicyclist volume along this route and used secondary data to supplement counts missing due to COVID-19. We used two reference studies including local bicycling population to estimate benefit of separated bicycling infrastructure and applied this to a city-wide estimate of baseline risk of injury per kilometre bicycled, which used a combination of secondary data sources including police, health care and travel survey data. Finally, we adjusted baseline risk to account for increased bicyclist volume during and following the COVID-19 pandemic. Results: We estimated installation of fully separated cycle tracks along one Toronto corridor would prevent approximately 152.9 injuries and 0.9 fatalities over a 10-year period. Discussion: Our results underscore the benefits of separated bicycling infrastructure. We identify several caveats for our results, including the limitations of studies used to estimate relative risk of infrastructure. Our method could be adapted for use in other cities or along other corridors. Finally, we discuss the role of preventable burden estimates as a knowledge translation tool.

Eco-Design of the Urban Corridor in View of the Landscape Ecological Theory

Benefiting from the rapid development of global economy, a growing number of post-industry products spring up. In comparison to the population in the suburb, the urban population presents a significantly increasing tendency. Undoubtedly, the efficient lifestyle, the convenient way of traveling and the industrial products have caused irresistible threat and damage to the nature. The soil desertification, saline-alkali land, forest degradation and else environmental issues occur as an obvious warning from the nature to us. Therefore, it is an imminent research subject at the moment to seek for symbiotic and harmonious relationship between the human and the nature. The urban landscape is a type of highly artificial design. In it, the urban corridor develops to steer the development of the overall urban landscape pattern. In the process of urban corridor design, the landscape ecological theory is essential in practical application. Spirited by ecological design, the natural ecology landscape is added on the basis of artificial restoration. This paper profoundly studied the sustainable development of the urban landscape setup, thus providing healthier and livelier design on the green ecological corridor for the urban dwellers.

Performance of Urban Corridor Using Speed Profile Data of Automobile

The level of service on urban roads quality experienced by the drivers will be varying it is difficult to study the variations due to heterogeneous traffic flow conditions of Indian urban roads. As per TRB, 2010 macroscopic traffic flow parameters are found to be deficient in capturing the quality of service on urban roads experienced by users. Hence the objective of the study is to develop new methodology to evaluate the urban roads in heterogeneous traffic conditions considering the microscopic parameters of traffic flow in a four-lane divided urban corridor. The speed profile of the motorised two-wheelers both in free flow and peak flow were collected from the urban corridor of Bangalore Karnataka, India. Using GPS based mobile application. From the speed profile data, the speed variation characteristics were studied. The various speed indices considered in the study are VN (Velocity noise), CV (Co-efficient of variation), AN (Acceleration noise), and MVG (Mean Velocity Gradient). The CV is considered as the measure of effectiveness, higher the CV more will be the variation of quality experienced by the road users.