Cycling facilities in Nantes Métropole — enriched

Cycling facilities in the territory of Nantes Métropole * * * In 2020/2021, a new comprehensive inventory of cycling schemes was carried out on the territory of Nantes Métropole. This inventory induces changes to the cartographic representation of objects bringing more precision on cycle lines: the geometric representation is now made on the individual axis of each bike layout (a cycle band on each side of the road gives rise to two linear objects), an attribute on each object provides information on the specificity of a bicyclable or non-cyclable layout. The data is based on a comprehensive inventory carried out in 2020 and 2021 on spaces open to public traffic (including cycle-specific lanes). You will find attached to this dataset the methodology for the inventory of cycling facilities. The classification of the various cycling facilities consists of 8 objects: * **cyclable strips**: area reserved exclusively for cyclists on the roadway, separated from motorised traffic by a simple marking (and not by a separator referenced as a characteristic of a cycle path). The space is usually bounded by a strip of paint. The marking of the bike strip is identifiable in the field by a cycling figure and/or chevrons. * **unidirectional or bidirectional cycle paths: **only for two- or three-wheel cycles. It can be unidirectional or bidirectional. In the field, a cycle path is identified by the fact that it is located outside the part of the other users (especially cars) and is separated from it by one of these types of separators: * of a zone neutralised by two continuous lines * a clean site physically separated from the main track * elements in elevations (rims, hedges...) * height difference elements (when the bike path is up to the sidewalk or shifted) * parking facilities * green spaces * **double cycle direction**: The bicyclable double sense, or “D.S.C.”, is not so much an object as a concept or characteristic carried by a street. A so-called “cyclable double-sense” street is two-way traffic — or two-way — but one of these is reserved for cyclists only. The bicyclable double sense, or “D.S.C.”, is not so much an object as a concept or characteristic carried by a street. A so-called “cyclable double-sense” street is two-way traffic — or two-way — but one of these is reserved for cyclists only. Attention will be paid to its name and, although the term cyclable countersense may have been used regularly, its use will now be avoided in order to avoid confusion with countersense traffic which is an offence. * **green lanes:** lane exclusively for the use of non-motorised vehicles, pedestrians and riders. It is characterised by the presence at each end of panels C115 at the entrance and C116 at the end of the green lane * **the upgraded bus corridors**: in the bus corridors, it can be materialised a layout that combines cyclist figurines and a widely spaced bicycle belt type guide marking. Upper crossing: on bridges, right-of-way is often limited and requires cohabitation in the same space. * **chaucidou**: A laucidou, or a common central roadway, is a particular layout of a pavement where it is impossible, for questions of available width, to draw cycling strips on it. We then create a general central roadway, which is trivialised because it accommodates traffic in both directions. The remaining width is granted to covered shoulders where pedestrians and cyclists can travel and allow motorised vehicles to cross by encroaching on these spaces. * **other** **s or figurines**: Cycling figures are not considered to be cycling as such unless they are used to mark the presence of a bicyclable sense. The “Other” qualification was used during the inventory to capture the specificities of certain developments which do not correspond to the clearly defined types Cycling development data have changed significantly since 2019 due to a field inventory and a change in survey methodology. Comparisons between 2019 and 2020 are therefore not representative. These new figures must be seen as a reliable new state of play. This new modeling enriches the dataset already existing on the portal [data.nantesmetropole.fr](http://data.nantesmetropole.fr) which you will find [following this link](https://data.nantesmetropole.fr/explore/dataset/244400404_amenagements-cyclables-nantes-metropole/). * * *