CORENET X

Note that External Works is undergoing further refinements. More updates will be released in future COP versions.

Under CORENET X, the QP has to submit the proposed external works to the LTA, NParks and PUB for a coordinated regulatory review. To guide the industry in preparing their external works submissions at the various gateways, the agencies have worked together to map their regulatory objectives and requirements. Due care was taken to ensure that:
- There are no direct conflicts in the rules between the agencies.
- Various components of the road typology is holistically reviewed by the respective agencies within the same gateway.
External works details can be submitted in the 2D CAD format.

Agency	2D Plan Representation / Templates
Agency	Description	Examples
LTA	LTA will provide drawing templates for the various plans (e.g. traffic, alignment, site plan, profile, section/details etc.) to better guide QPs to prepare the design details to be reflected in the plans. Example, S3 – Fig 1 (right): Part of a road layout template for various common road infrastructure facilities.
NParks	QPs can refer to NParks’ handbook (see right S3 – Fig 2) for information to be provided to facilitate assessment and approval of development applications. See right S3 – Fig 2. Guidelines on Greenery Provision and Tree Conservation for Developments
PUB	PUB has published a series of quick guides (see right S3 – Fig 3) with sample illustrations which outline the necessary information to be provided by QPs in their submissions to facilitate assessment and clearances. Quick Guide to Application for Clearance Certificate for Detailed Plan

Note: The submission format for proposed works within the development boundary shall follow the prevailing BIM submission requirements. Design >proposals for external works can be submitted in 2D (CAD). Notwithstanding, agencies are open to reviewing infrastructure models prepared in 3D.

Development (Internal) and External Works

Under CORENET X, LTA, NParks, and PUB require:
- Proposed works within the development boundary
- Proposed external works to be submitted as a single package across the regulatory gateways to ensure that both works are well coordinated.
For LTA:
1. Works within the development boundary pertain to:
  - Vehicle parking layout/Bicycle parking lots
  - Layout of pick-up/drop-off (PUDO) points
  - Internal driveways
  - EV charging infrastructure
2. External works pertain to works within the road reserve, such as:
  - Street improvement works
  - Commuter facilities
  - Active mobility infrastructure

S3 – Fig4: Example of development (Internal) work - PUDO layout

S3 – Fig5: Example of external work – Road Infra Improvement

Interfacing Aspects to be Cleared as Part of Development (Internal) Works

It is common for a development to propose connections (serving various users such as motorists, pedestrians, cyclists, etc.) from within the development leading to the surrounding road network. These connections form interfaces at the development boundary. Such interfaces have to be well coordinated to ensure that the development platform level ties in properly with the existing roads. For new roads proposed in conjunction with development(s), the vertical profile of the roads (designed to comply with LTA design requirements) has to be established before other development interfacing details are considered. Additionally, interfaces usually demarcate the extent of maintenance ownership between the developer and the State.
The layout and cross-sections of interfaces between the development boundary and the road reserve shall be clearly reflected in the external works design proposal.

S/N	LTA and NParks Interfacing Aspects
1	Vehicular Access Points
2	Pedestrian Access Points
3	Cyclist Access
4	Covered Linkway/Walkway Connections
5	Pedestrian Overhead Bridge Connections
6	Pedestrian Underpass Connections
7	Bus Stops (If directly interfacing with the development building)
8	Taxi Stands (If directly interfacing with the development building)
9	Vertical Profile of New Street (If proposal involves construction of a new street or widening of existing roads)

S/N	PUB Interfacing Aspects
1	Connection of internal drain to road drain/drain outlet
2	MPL, adjacent road/ground level, and outlet discharge point levels
3	Point of proposed sewer connection