Source data for the publication Transport Impacts of Wroclaw’s Proposed Low-Emission Zone (dataset)

Abstract

This dataset contains the statistical and documentary inputs used in the study reported in the article “From policy to practice: accessibility impacts of Wrocław’s proposed low-emission zone”. The deposited materials support the assessment of how alternative access rules for a proposed low-emission zone may affect transport accessibility and the distribution of potential restrictions across the urban vehicle fleet. The dataset brings together aggregated public statistics for Wrocław and source materials describing the proposed clean transport zone. The statistical files include 2024 data on the city’s population structure by sex and broad economic age groups, as well as registered vehicles by vehicle category, age group, fuel type and passenger-car engine capacity. These data were used to characterise the socio-demographic and fleet context of the analysis and to parameterise assumptions concerning vehicles potentially affected by successive low-emission-zone criteria. The accompanying source material documents the real-world vehicle-emission survey and policy recommendations prepared for Wrocław, including information on measurement methodology, observed fleet composition, emission profiles and proposed implementation variants. All records are aggregated and contain no personal identifiers. The dataset therefore provides a transparent empirical basis for reproducing the non-spatial input assumptions of the accessibility analysis and for reusing them in comparative studies of low-emission zones, urban transport policy, mobility justice and the practical implications of environmental regulation in cities.