Mapped winter road connections to remote First Nations communities in Canada 2022-2023, using open data sources and satellite imagery

This dataset consists of shapefile outlines of winter roads and ice roads in Canada, verified for the 2022-2023 winter road season. It focuses on the public winter roads leading to remote First Nations communities which have no permanent land access. The line data also includes private winter roads, community-built winter roads where information is available, and feeder roads connecting to the permanent road network. First Nations communities connected solely by winter roads are included as point locations. Their local roads were likewise verified, updated, or newly digitised if not included in Canada's National Road Network (NRN) data.

Features were traced by hand and information was extracted from Canada's NRN open datasets and then modified using Esri Imagery Basemap, Planet Labs and provincial, municipal and federal information. This dataset aims to provide a temporally and spatially consistent record of varying provincial datasets to support respective infrastructure departments and environmental research of surface and climatic conditions surrounding winter roads.

The dataset was produced and funded through a NERC QUADRAT DTP studentship (NE/S007377/1).

本数据集包含加拿大境内冬季道路与冰路的形状文件（shapefile）轮廓，已针对2022-2023年冬季道路季完成核验。本数据集聚焦通往无永久陆路通道的偏远第一民族社区（First Nations communities）的公共冬季道路；其线要素数据同时涵盖私有冬季道路、可获取信息的社区自建冬季道路，以及连接永久道路网络的支线道路。仅依靠冬季道路实现对外连通的第一民族社区将以点位形式纳入本数据集，其境内本地道路若未被纳入加拿大国家道路网（National Road Network, NRN）数据，则同样会被核验、更新或全新数字化。

本数据集的地理要素均通过手动描边获取，信息源自加拿大国家道路网公开数据集，并借助Esri影像底图（Esri Imagery Basemap）、Planet Labs数据以及省、市、联邦级官方信息完成修正。本数据集旨在为不同省级数据集提供时空一致的标准化记录，以支撑各基础设施管理部门的相关工作，以及冬季道路周边地表与气候条件的环境研究。

本数据集由NERC QUADRAT DTP学生奖学金（编号NE/S007377/1）资助并制作完成。