Some small- and medium-sized Global South cities have unsustainable transport systems and no information to plan interventions in addition to having limited resources for data collection. This study proposes a method to understand Public Transport (PT) ridership in cities of these characteristics, based on previous studies and by analysing available indicators related to Manheim’s macro-variables, to identify their influence on the PT ridership. The method was applied in the city of Mexicali, Mexico. The results help to understand the causes of the low PT ridership and have implications for achieving sustainable urban mobility in the city. Findings reveal that mobility planning in Mexicali has been occurring without properly considering activity system related variables, so it is necessary to integrate urban and transport administration. Moreover, to increase PT demand in Mexicali, mobility strategies to discourage the use of private cars are necessary. The proposed method can be applied in other cities of the Global South with characteristics similar to the case study to understand the causes of PT ridership, so these can be considered by the agencies responsible for the planning of the city’s transportation system to promote a sustainable urban mobility.

The objective of this research is to develop a pavement design procedure that allows calibrating the design variables of asphalt pavements using regionalized conditions, to obtain efficient pavement performance for developing countries with limited resources and data. This study analyzes the roads of the state of Baja California, Mexico; where type structures are determined and the performance grade of the binder used in the manufacture of asphalt concrete is regionalized according to the weather conditions altitude, traffic, and quality of the available materials. In a complementary way, the economic incidence of pavements during its service life is analyzed, projecting the analysis with different pavement structures and damage coefficients. The results show that this approach favors the asphalt pavements that comply with the projected in its service life, reducing maintenance interventions and costs.

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issn impreso 0250-7161 | issn digital vol 45 | n o 134 | enero 2019 | pp. 99-122 | artículos | ©EURE Impacto de la accesibilidad carretera en la calidad de vida de las localidades urbanas y suburbanas de Baja California, México Leonel García.resumen | El impacto de la red carretera federal en la calidad de vida de la población urbana y suburbana en las localidades de Baja California, México, se evalúa mediante un análisis de las condiciones de accesibilidad relativa y absoluta que presenta la red, así como de las intervenciones en materia de conservación carretera en una década. Asimismo, se miden los Índices de Marginación Urbana (imu) a una escala territorial denominada Área Geoestadística Básica (ageb), en una situación ex ante y ex post. Se observa que la prioridad ha sido intervenir sobre la red carretera primaria, y que en ciertas localidades de los cinco municipios de la entidad se requiere intervenir en la red alimentadora y secundaria. Se concluye que aquellas localidades con mayor accesibilidad a la red carretera son las que presentan los menores niveles de imu, principalmente aquellas que hacen intersección con una carretera con anchos de sección transversal más amplios. palabras clave | calidad de vida, centros urbanos, infraestructura urbana. abstract | The impact of the federal highway network on the quality of life of the urban and suburban population in the localities of Baja California in Mexico is evaluated through an analysis of relative and absolute accessibility conditions presented by the network, as well as interventions in road conservation in a decade of study. Likewise, the Urban Margin Indexes (umi) is measured at a territorial scale called the Basic GeostatisticsArea (bgea), in an ex-ante and ex-post situation. It is observed that the priority has been to intervene on the primary road network and that in certain localities of the five municipalities of the entity it is necessary to intervene in the feeder and secondary network. It is concluded that those localities with greater accessibility within the road network are those with the lowest levels of umi, mainly those that intersect with a road with wider widths of cross-section.keywords | quality of life, urban centre, urban infrastructure.

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