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EnvironmentGeospatial

National Map Line

SLA (Singapore Land Authority)

This dataset contains major features for national map data sharing that are represented in polyline form. Data includes road data like expressway, major roads, international boundary and contour lines.

Data from Aug 2025

Last updated 6 days ago (25 Oct 2026)

Updated annually

Attribute Legend

AttributesData TypeDescription
OBJECTIDNumeric-
NAMENumeric-
FOLDERPATHText-
SYMBOLIDNumeric-
INC_CRCText-
FMEL_UPD_DNumeric-
SHAPE.LENNumeric-

Dataset preview

This code can be used to view the raw JSON dataset for National Map Line. Large datasets may be truncated in the preview. Please download the dataset for complete data.

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Sample OpenAPI query

This code can be used to test a sample API query. It retrieves the data catalogue of this dataset. For a complete guide on query parameters and syntax, please refer to the API documentation

Adding an API key gives you higher rate limits and priority support. Log in to create your API key.

import requests
          
dataset_id = "d_10480c0b59e65663dfae1028ff4aa8bb"
url = "https://api-open.data.gov.sg/v1/public/api/datasets/" + dataset_id + "/poll-download"
        
response = requests.get(url)
json_data = response.json()
if json_data['code'] != 0:
    print(json_data['errMsg'])
    exit(1)

url = json_data['data']['url']
response = requests.get(url)
print(response.text)

Citation

This dataset can be reused and cited in research publications.

Singapore Land Authority. (2017). National Map Line (2026) [Dataset]. data.gov.sg. Retrieved October 31, 2026 from https://data.gov.sg/datasets/d_10480c0b59e65663dfae1028ff4aa8bb/view

About this dataset

Contact

SLA_CDO_Office@sla.gov.sg

Created on

19 Jun 2017

Licence

Free forever for personal or commercial use, under the Open Data Licence.

Agency

SLA (Singapore Land Authority)