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Published July 24, 2025 | Version 1
Dataset Open

Nicosia's non-motorised segmented street network - manually edited.

Authors/Creators

  • 1. ROR icon University of Cyprus
  • 2. University of Cypurs

Contributors

Project leader:

  • 1. ROR icon University of Cyprus
  • 2. ROR icon Benha University

Description

A dataset containing spatial and attribute data for non-motorized segmented street network.

Coordinate System: CGRS93

Zone extent:

The extents of the dataset refers to the Urban Morphological Zone (UMZ) of Nicosia, Cyprus, and a buffer of 20 km around it.

Non-motorized Network:

The non-motorised network dataset is based on Open Street Maps (openstreetmap.org, http://download.geofabrik.de, date of download 01-11-2023).

 We include all streets and paths that are accessible for people walking or cycling, including those that are shared with vehicles. All streets where walking or cycling is forbidden, such as motorways, highways, or high-speed tunnels, are not included in the network.

Editing and cleaning:

The original road-centre line map was edited based on the basic representational principles of Space Syntax Methodology. We followed the same editing and generalizing procedure to remove errors and increase comparability between networks. This process included removing duplicate and isolated lines, snapping and generalizing. The aim was to create appropriate line-segment maps to be analysed using Angular Segment Analysis, a network centrality analysis method introduced in Space Syntax.

The road-centre line map was cleaned and simplified using the Space Syntax Toolkit (SST) version 0.3.10 for QGIS (version used LTR 3.28) using the default settings, and manually edited by researchers to ensure that:

·         all roads and paths were represented as one line irrespectively of the number of lanes or type, meaning that parallel lines representing a street and a pedestrian or a cycle path running on the side, are reduced to one line[1]

·         all footpaths were included in the models

·         roundabouts and intersections were represented correctly

·         the unlinks[2] produced by the SST were represented correctly

The road-centre line map was then processed with the Place Syntax Toolkit version 3.2.5 to create line segment maps which could be used in the analysis.

Schema 

Field name: Street_id

Data type: Integer

Description: Unique identifier for each street segment


[1] The reason is that these parallel lines are nor physically or perceptually separated, and thus are accessible and recognized from pedestrians as one “line of movement” in the street network. If there are obstacles or great distance between parallel streets and paths, then the multiple lines remain. This representational choice follows the Space Syntax methodology in representing the public space and the street network.

[2] The network (cleaned and simplified road-centre line map) layer is complemented with an “Unlink points” layer; a GIS point layer with the locations of all non-level intersections, such as overpasses and underpasses, bridges, tunnels. The Unlink point layer is necessary to generate the segment model to conduct network analysis that takes into account the non-planarity of the street network.

 

Files

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Additional details

Funding

European Commission
TWIN2EXPAND - Twinning towards Research Excellence in Evidence-Based Planning and Urban Design 101078890
UK Research and Innovation
TWIN2EXPAND 10052856
UK Research and Innovation
(TWIN2EXPAND): Twinning towards Research Excellence in Evidence-Based Planning and Urban Design 10050784

Dates

Created
2023-11-01
Updated
2024-11-01