Request for Internal Database Schema, Metadata Dictionary, and Master Export of the Public EV Charger Registry
環境保護署：
Under the Code on Access to Information, I would like to request access to the following administrative and structural records regarding the dataset "Electric Vehicle Chargers for Public Access" currently published on data.gov.hk:
1. Database Schema & Metadata Dictionary: The internal database schema, field definitions, and metadata dictionary corresponding to the backend repository used to manage public EV charger listings. Specifically, details on data types, field names, valid value ranges, and system definitions for operational status flags.
2. Master Dataset Export: A complete, machine-readable raw export (e.g., CSV/JSON) of the master charger database, including non-public administrative fields such as:
o Exact spatial coordinates (Latitude / Longitude in WGS84 or HK1980 grid).
o Operator / Charge-Point Operator (CPO) company names.
o Per-entry last-verified / last-updated timestamps.
o Internal operational/maintenance status flags (e.g., Active, Out of Order, Decommissioned, Suspended).
Purpose of Request: This information is required for academic research evaluating spatial accessibility and data consistency across public transport and environmental datasets in Hong Kong.
Thank you for your assistance.
Yours faithfully,
CHOW Wing Yin
(Student, Hong Kong Baptist University)
市民
Chow Wing Yin
Thank you for your email. This is to confirm receipt of your email and a
reply will be sent to you where necessary.
Environmental Protection Department
(The above message is generated by an auto-reply program.)
謝謝閣下的電子郵件，有需要的話，我們會盡快給你回覆。
環境保護署
（以上為電腦自動發出的訊息。）
Dear Sir/Madam,
Thank you for your email dated 4.11.2026.
Further to the auto-reply, we would like to inform you that we are
processing your enquiry.
Regards,
Isaac HAN
Environmental Protection Department
-----Original Message-----
From: [ATI #1695 email]
<[ATI #1695 email]>
Sent: Wednesday, November 4, 2026 10:21 PM
To: EPD_Enquiry/EPD <[Environmental Protection Department request email]>
Subject: E(26/8887)公開資料要求 - Request for Internal Database Schema,
Metadata Dictionary, and Master Export of the Public EV Charger Registry
環境保護署：
Under the Code on Access to Information, I would like to request access to
the following administrative and structural records regarding the dataset
"Electric Vehicle Chargers for Public Access" currently published on
data.gov.hk:
1. Database Schema & Metadata Dictionary: The internal database
schema, field definitions, and metadata dictionary corresponding to the
backend repository used to manage public EV charger listings.
Specifically, details on data types, field names, valid value ranges, and
system definitions for operational status flags.
2. Master Dataset Export: A complete, machine-readable raw export
(e.g., CSV/JSON) of the master charger database, including non-public
administrative fields such as:
o Exact spatial coordinates (Latitude / Longitude in WGS84 or HK1980
grid).
o Operator / Charge-Point Operator (CPO) company names.
o Per-entry last-verified / last-updated timestamps.
o Internal operational/maintenance status flags (e.g., Active, Out
of Order, Decommissioned, Suspended).
Purpose of Request: This information is required for academic research
evaluating spatial accessibility and data consistency across public
transport and environmental datasets in Hong Kong.
Thank you for your assistance.
Yours faithfully,
CHOW Wing Yin
(Student, Hong Kong Baptist University)
市民
Chow Wing Yin
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[ATI #1695 email]
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