How to get a most up-to-date overview on attributes used in HERE Maps

How to access the latest HERE Map attribute overview (CTRG – Attribute Overview and Usage)

Summary / Quick Answer
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To get the most up-to-date overview of HERE map attributes and their usage, download the Customer Technical Reference Guide (CTRG) from the HERE FlexNet B2B Download Center. The CTRG package contains a file called “Attribute Overview and Usage Qx YYYY”, which provides a comprehensive list of attributes and detailed descriptions.

When do you need this? (Symptoms / Triggers)
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- A current and complete list of HERE map attributes
- Detailed explanations of attribute usage
- Official HERE technical documentation (latest version)
- Attribute references for development, validation, or data analysis

Resolution
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Step 1: Access the HERE B2B Download Center
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Open the HERE FlexNet portal and log in using your HERE account credentials.

Step 2: Search for CTRG documentation
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Navigate to Product Search and enter "CTRG", then click Search.

Figure 1: Search for “CTRG” in the Product Search section

Step 3: Download the CTRG package
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Select the relevant Customer Technical Reference Guide (CTRG) version from the search results and download the .tar file.

Figure 2: Select and download the CTRG package from the search results

Step 4: Extract the files
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Save the downloaded file locally and extract (unzip) the .tar archive.

Step 5: Locate the attribute overview
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Open the extracted folder and navigate to /Specifications. Locate the file "Attribute Overview and Usage Qx YYYY".

Result
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The “Attribute Overview and Usage” file provides a structured overview of HERE map attributes, including definitions, usage context, and technical details.

Notes / Additional Information
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The CTRG is continuously updated — always download the latest version to ensure accuracy.
File naming convention: Qx YYYY indicates the release quarter and year (e.g., Q2 2026).
Access to the B2B portal requires valid HERE credentials.