DOI: 10.21949/y6t3-e908
title: Leading in Sustainable Safety with V2X Technology in Oakland County Michigan [supporting dataset]

description: National Transportation Library (NTL) Curation Note: This dataset has been curated to CoreTrustSeal's curation level "A. Active Preservation". To find out more information on CoreTrustSeal's curation levels, please consult their "Curation & Preservation Levels" CoreTrustSeal Discussion Paper" (https://doi.org/10.5281/zenodo.11476980). NTL staff last accessed this dataset at its repository URL on 2025-06-23. If, in the future, you have trouble accessing this dataset, please email NTLDataCurator@dot.gov describing your problem. NTL staff will do its best to assist you at that time.

Data Management Plan Note: This dataset's data management plan (DMP) was originally created using DMPTool. You can access a copy of the DMP here: https://doi.org/10.48321/D1CD02BD49

Public Access Note: This item is made available under the terms of the Creative Commons Attribution 4.0 International (CC BY 4.0) license https://creativecommons.org/licenses/by/4.0/. Use the following citation:

Ward, Jeremy, Tracz, Tom, and Danielle Deneau (2025). "Leading in Sustainable Safety with V2X technology in Oakland County Michigan dataset from the Road Commission of Oakland County (RCOC)", Strengthening Mobility and Revolutionizing Transportation (SMART) Program. https://doi.org/10.21949/y6t3-e908
description: This project was to design and prototype a scalable, interoperable, and financially sustainable Connected Vehicle (V2X) system to enhance roadway safety and mobility across Oakland County, Michigan. The goals and objectives of this project included:  1) Developing a scalable business model for V2X deployment that reduces reliance on public funding by incorporating private partnership and investment as well as subscription-based services and 2) Piloting a hybrid approach using C-V2X in the 5.9 GHz band and U-NII bands and Networked V2X over cellular networks to address spectrum constraints and extend coverage. 

The total size of the zip file is 250 MB. The following file types are standard for GIS mapping software: AUX, CSF, DBF, PRJ, SBN, SBX, SGML, SHP, LOCK, SHX, CSF, CPG, LYR, MXD, FDBINDEXES, GDBTABLE, GDBTABLX, ATX, SPX. Because the files pertain to map layers and images, they are best viewed using the software that the team used or with any open source 2D and 3D mapping software. The .shp file extension is used for ESRI Shape format, a popular geospatial vector data format for geographic information systems software. A shapefile stores non-topological geometry and attribute information for the spatial features in a data set. A shapefile consists of a set of 3 mandatory files, along with several optional files. Each file in the set shares the shapefile name with a different extension. The main file .shp stores the geometry and must always have an index file .shx. A dBASE file .dbf stores all the attributes of the shapes in the main file. Additionally, a projection file .prj stores the projection information (for more information on .shp files and software, please visit https://www.file-extensions.org/shp-file-extension). The .dbf file extension is traditionally used for database file by many database applications. The original program, which used the DBF file extension for its database, was dBAse. A major legacy of dBase is its dbf file format, which has been adopted in a number of other applications. For example, the shapefile format developed by ESRI for spatial data in a geographic information system uses .dbf files to store feature attribute data (for more information on .dbf files and software, please visit https://www.file-extensions.org/dbf-file-extension). A .shx file contains compiled shape data (building blocks, fonts) in form of the machine language compiled version of an .shp file. The file type is associated with AutoCAD, a CAD development platform, developed and sold by Autodesk, Inc (for more information on .shx files and software, please visit https://www.file-extensions.org/shx-file-extension). The Portable Document Format (PDF) file format was developed by Adobe Systems and represents two-dimensional documents in a device-independent and resolution-independent format. There are PDF readers available on many platforms, such as Xpdf, Foxit, and Adobe's own Adobe Acrobat Reader. PDF readers/viewers or online services for basic functions are generally free (for more information on .pdf files and software, please visit https://www.file-extensions.org/pdf-file-extension).