The purpose of the research is the evaluation of the impact of a new bike lane network built in Cáceres (Spain) in October 2019, a city with a weak tradition in the use of bicycles. Prior to the new project, the percentage of displacement by bicycle was under 0.2% (by contrast, private cars was 56%). The project has introduced a real network in 33 new streets and avenues, and 250 new parking places for bicycles. The impact has been evaluated by two online surveys, one conducted in November–December 2019 just after the inauguration, and the other conducted in January–February 2020. For that, the impact evolution after the first 3 months has also been evaluated. The result allows to analyze the citizens’ response to the new infrastructure; the main conclusion is that the effect of the built infrastructure is clearly positive in terms of new users, new potential users, and bike general image for the citizens. Moreover, this positive effect has grown after the first 3 months.

The historic water supply to large cities constitutes a constructed heritage characterised by comprising a range of public structures—dams, canals, tanks, siphons and aqueducts—over a large geographical area. Within this international context, this paper looks at the case of Canal de Isabel II (CYII) and its historic infrastructure, built in the second half of the 19th century and the early 20th century. The purpose of this study is to analyse how these water supply public works, which maintain their original use, have also taken on new functions through the conversion of some of their parts and added new values to the existing ones. In order to do this, an inventory was drawn up with the location and cultural value of each structure based on its historic, technological, landscape and symbolic features, as well as its use. The results establish the significance of the overall system, not only in functional terms but also as a cultural resource. It is essential to understand the historic water supply infrastructure as a whole, not just as individual components but rather as pieces of a network. This is also essential for the management and preservation of the system, both where the structures are still in use as part of the water supply and where they have been converted for other uses.

Recently there has been increasing interest in the construction of bike lanes in cities due to their enormous positive effects; however, in some places society is resistant to these infrastructures and it is difficult to break a dynamic defined as the vicious circle of cycling mobility. In view of this, there is the option of proposing temporary bike lanes to evaluate the social response and, if successful, to make them permanent. This option is called temporary or tactical urbanism and has been widely used in the field of bicycle infrastructure during the coronavirus disease 2019 pandemic. The problem is that there is no quick and low-cost method to determine a comprehensive and well-connected scheme of bike lanes in the whole of a city; therefore, sometimes design mistakes are made and as a consequence temporary infrastructures, far from becoming permanent, disappear. This research study proposes an agile and economical methodology to establish which streets, within those that define the urban grid as a whole, can accommodate a temporary bike lane without altering the motorised traffic grid. The method is based on the use of quantum geographic information system and on a quick and easy data collection. The method was applied to downtown Gijón, Spain.

El texto propone un método para el análisis de puentes históricos. Esta metodología se aplica para estudiar el Puente de Jaraicejo, situado en el río Almonte en la provincia de Cáceres, España. Los estudios previos sobre la estructura se han apoyado en la documentación histórica. Sin embargo, en este texto se realiza un análisis global que parte de las fuentes históricas originales, y continúa con un trabajo de campo que incluye un análisis visual y un levantamiento topográfico. La interpretación de los datos recogidos permite llegar a nuevas conclusiones acerca de la evolución histórica del puente. La investigación realizada puede ser incluida en los métodos de la arqueología de la arquitectura.