All LTA Work Instruction

7/24/2019 All LTA Work Instruction

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WHAT YOU NEED TO KNOW FOREFFECTIVE PREPARATION FOR

DEVELOPMENT WORKS

Organised by

Development & Building Control Division


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Workshop TopicsWorkshop Topics

Preparation of Street Plan andPreparation of Street Plan and

Street Plan LodgementStreet Plan Lodgement Pointers on Covered LinkwayPointers on Covered Linkway

ProposalsProposals Quality Traffic SchemeQuality Traffic Scheme

Good Tips for Designing ParkingGood Tips for Designing Parking

Places & SpacesPlaces & Spaces

Permit for Works on Public StreetPermit for Works on Public Street


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Preparation of Street PlanPreparation of Street Plan

and Street Plan Lodgementand Street Plan Lodgement

Organised by

Development & Building Control Division


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To share on LTATo share on LTAs requirements fors requirements for

street plan submissionstreet plan submission

To help participants prepare qualityTo help participants prepare quality

plan submission for quicker approvalplan submission for quicker approval

To share on requirements & benefitsTo share on requirements & benefits

of street plan lodgementof street plan lodgement

Objectives


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Submission Stages of Street Works

Proposals (General Overview)

Development Control StageDevelopment Control Stage

Street Plan StageStreet Plan Stage

Certificate of Statutory Completion StageCertificate of Statutory Completion Stage

Maintenance Period of 12 monthsMaintenance Period of 12 monthsIf New Street (s)

is/are constructed

Handing Over StageHanding Over Stage

Street Plan StageStreet Plan Stage


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ee--Submission proceduresSubmission procedures

Street Plan presentationStreet Plan presentation

Tactile ti les (BFA)Tactile ti les (BFA)

Utility crossingUtility crossing

Zone of InfluenceZone of Influence

Frequent Errors Made (FEM)Frequent Errors Made (FEM)

LTALTAs Reference Materialss Reference Materials

Lodgement of Street PlanLodgement of Street Plan

Scope of Presentation for PreparationScope of Presentation for Preparation

of Street Plan and Lodgementof Street Plan and Lodgement


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LTA ISSUES DC

CLEARANCE

PE SUBMIT STREET PLANS

FOR BP CLEARANCE

QP MAKES

AMENDMENTS

START

DEVELOPMENT

PROPOSAL

COMPLY WITH

LTA

REQUIREMENTS?

YES

NO

PE APPLY FOR

CSC CLEARANCE


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Within 30 Days PE submits StreetPlan to LTA

via e-Submission


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How do you make a Street Plan

e-submission ?


e-submission ?


e-submission ?

Form LTA-DBC_ROADS.XFD

PROJECT-PROFILE.XFD

SUBMISSION.XFD

Street Plan

Written Permission and Approved Layout Relevant documents as stated in Section IIIof the e-form LTA-DBC_ROADS.XFD

Site Photos of development frontage, etc Structural design calculations of concretestructures

Checklists and documents related toproposal


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ee--FormForm

LTALTA--DBC_ROADS.XFDBC_ROADS.XFD

Select Street PlanSelect Street Plan


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ee--FormForm

LTALTA--DBC_ROADS.XFDBC_ROADS.XFD

completecomplete

declaration indeclaration in

SECTION IIISECTION III

comments /comments /

clarifications related toclarifications related to

the submissionthe submission


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ee--FormForm

LTALTA--DBC_ROADS.XFDDBC_ROADS.XFD

For resubmission ofFor resubmission ofstreet plans / prestreet plans / pre--

consultation, enquiriesconsultation, enquiries

and etcand etcSelect GENERALSelect GENERAL

CORRESPONDENCECORRESPONDENCE


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ee--FormForm


comments / clarifications oncomments / clarifications onthe submissionthe submission


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Endorsement of LTAEndorsement of LTAs Generals General

Requirements (for DC & BP)Requirements (for DC & BP)

Endorsements are not consistent

Need not be endorsed on plan

Requirements are in the e-form

LTA- DBC_ROADS.XFD


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Written Permission


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Street Plan will have

Entrance

culvert

Site Plan including a Location Plan

Certified topographical survey plan

Layout of road, road reserve lines in

accordance with the RLP

Entrance culvert details Longitudinal Section

Cross Section Street Lighting Plans

Road Elements Label

Table for the Standard Road Elements

NOTE DESCRIPTION DRAWING NO.

1 PEDESTRIAN GRATING ( WITH CHEQUER PLATE) LTA/RD/SD99/GRA/2

2 TYPE K2 PC.C KERB LTA/RD/SD99/KER/1

3 FOOTPATH RAMP (SIDE ROAD) LTA/RD/SD99/KER/9

4 FOOTPATH RAMP (DRIVEWAY) LTA/RD/SD99/KER/10

5 CAST-IN-SITU BOX CULVERT LTA/RD/SD99/DRA/2

6 ALUMINIUM RUNG LTA/RD/SD99/DRA/4

7 PRECAST U-DRAIN AND SLABBED OVER U-DRAIN LTA/RD/SD99/DRA/5

8 PC.C DROP-INLET CHAMBER LTA/RD/SD99/DRA/7

9 FLEXIBLE PAVEMENT (TYPE III) FOR LOCAL ACCESS LTA/RD/SD99/PAV/4

10 SOIL AERATION LTA/RD/SD99/PNR/2&3

REFERENCE TO STANDARD DETAILS OF ROAD ELEMENTS (LTA 2000)


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How would a complete Street Planlook?


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Complete Set of Street Plans

LOCATION PLAN CROSS SECTIONS

TABLE OF

ROADELEMENTS

SITE PLAN

ROAD RESERVE LINE

& BOUNDARY LINE


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Longitudinal Section Plan

LONGITUDINAL SECTION

Top of culverttop of drain slab

Extg road edge level


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Cross sectionCross section

cross fall and components to be shown in the sectionscross fall and components to be shown in the sections

1:40 fall 1:30 fall


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CRD-01

Typical Cross Section for Entrance

Culvert

1200 DRAIN CUM FOOTPATH

150 700 WIDE 150

BOX CULVERT

SLOPE GRADIENT < 1 : 10

E d t t t f d


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End treatment of covered

drain and open drain

Railing at the

end of

covered drain

Footpath

link

Footpathlink


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End treatment of covered

drain and open drain

Railing at the

end of

covered drain

Footpath

link

Footpath

link

D i l t h b d


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Drop-inlet chamber and

scupper drain

Drop-inlet

chamber

C t l ti t l


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Location of drop-inlet

chamber

Correct location to place

drop inlet chamber


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DropDrop--inlet chamberinlet chamber

Direction of Traffic

Hinge


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Lamp posts and sign postLamp posts and sign post

Lamp post

Street sign

Lamp post

F t th t l l f


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Footpath at splay corner, clearance of

lamp post and signs from kerb

600 mm

Clearance from

edge of plate

600 mm


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600mm

600mm

from edge of signplate above

Close up view of clearance


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Tabulating the road elements


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How are road elements labelled?


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Enlarged area of Label

Note 7-soil aerationNote 2-drop-inlet chamber

Note 7 soil aeration

Note 2 drop-inlet chamber


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Tabulation of Elements

Drg Nos from STANDARD DETAILS OF ROAD ELEMENTS


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Stan

dard

DetailsM

E

N

M

E

N

T

Improve provision for barrier freeImprove provision for barrier free

Elderly friendly road related facilitiesElderly friendly road related facilities

To inform crossing boundariesTo inform crossing boundaries

for the visually impaired personfor the visually impaired person

Footpath Ramps at Pedestrian

Crossings


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Tactile Tiles on footpath rampsTactile Tiles on footpath ramps

25mm drop25mm dropHomogeneous Tiles (robust & durable)

as Decision Tactile Tiles

Yellow coloured tiles provides a good contrastwith concrete footpath in low light intensity

condition (at night)

Main improvements to Standard Details


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Main improvements to Standard Details

of Footpath Ramps at Entrance

Driveway

Footpath

ramp level

flushed

with road

level

(25mm

dropremoved)

Install 600mm wide

colour contrasting decision tactile tiles

600m

m

600m

m

wid

ewid

e

300mm from300mm from

road edgeroad edge

300mm300mm

300mm

300mm


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Photo of Footpath Ramps across driveway

Tactile tiles

Entrance drivewayEntrance driveway300mm

Tactile tiles

Entrance drivewayEntrance driveway

300mm


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New Footpath Ramp Details at Side Road

Decision tactileDecision tactile

tilestiles

S

ideroad

S

ideroad

1:40


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Photo of Footpath Ramps at Side Road

Side roadSide road

Tactiletiles

Flushlevel


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300mm300mm

900mm

Tactile Tiles for Curved Footpath Ramps

A minimum of 2 set of tactile tiles to be laidA minimum of 2 set of tactile tiles to be laid

300mm from kerb (staggered)300mm from kerb (staggered)


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300mm300mm

Tactile Tiles for Junction Ramps

A minimum of 2 set of tactile tiles to be laidA minimum of 2 set of tactile tiles to be laid

300mm from kerb (staggered)300mm from kerb (staggered)


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Structural calculations and

details of retaining wall, entranceculvert, cross culvert etc within

the road reserves are to besubmitted


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Utility Pipes Crossing

Footpath Slab


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Guideline on

Utility Services

Crossing footpath


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Typical Details of

Water Pipe Crossing

Sectional View

Independent r.c.

slab for the pipe

Road reserve line


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Typical Details of

Water Pipe Crossingr.c.slab maintained

by utility agency

Identification

plate

Road reserve line

Utili ty agency submits undertaking letter to LTA


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Typical Details of

Gas Pipe Crossing

Independent r.cslab for the pipe

Sectional View

Road reserve line


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Details for larger diameter

gas pipes

Utility agency submits undertaking letter to LTA

Independent r.cslab for the pipe

Utilityagency

submits

undertaking letter

toLTA tomaintainthe

independent slab

Independent slab to be maintained by


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Details for gas

pipes which are

50mm and smaller

Independent slab to be maintained by

util ity agency

Utility agency submits undertaking

letter to LTA to maintain the channel


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Zone of Influence


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Where is the Zone of Influence?Where is the Zone of Influence?

When is method statement, soilWhen is method statement, soil

investigation & site monitoring required?investigation & site monitoring required?

45

road

45

Zone of Influence is where the line drawn 45Zone of Influence is where the line drawn 45

fromfrom

the lowestthe lowest point of excavationpoint of excavation

Road

Reserve

Line

RoadR

eserve

Line

45

45

road

Method Statement & site monitoring required whenMethod Statement & site monitoring required when

zone of influence falls within road reservezone of influence falls within road reserve

Not RequiredNot Requiredbut PE stil l requiredbut PE stil l required

to monitor siteto monitor site

RequiredRequired

Basement 1

Basement 2Basement 1


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Slope Failure / Adjacent Ground may sink or subsideSlope Failure / Adjacent Ground may sink or subside

Danger to road users & vehicular trafficDanger to road users & vehicular traffic

Excavation Works beside RoadExcavation Works beside Road

If NOT suitably designed and supervised,

N ti ff t f E ti W kN ti ff t f E ti W k


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Negative effects of Excavation WorksNegative effects of Excavation Works

F t E M d (FEM)F t E M d (FEM)


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Incorrect e-form attached

e.g. old CORRESPONDENCE.XFD instead ofthe LTA-DBC_ROADS.XFD

Resubmission not using GeneralCorrespondence

Written Permission not submitted

Location Plan with insufficient road

information



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Missing cadastral lots information

Road Reserve line not indicated

Tactile tiles together with 25mm drop

Tactile tiles placed at the edge of footpath

ramp

Layout of tactile tiles not correct



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Annotations not made with reference to the

table for standard details

Unsuitable choice of colours used, making

plan viewing difficult

Submit street plan prior to DC Clearance

Submit street plan instead of lodgement




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Connection of existing & proposed footpath

not shown

Cross fall stil l showing 1:36

Unnecessary endorsement of the LTA

requirements on plans


Steep Entrance Approach


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Steep Entrance Approach

Gradient improved

Steep Ramp

Incorrect Design of Footpath


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Incorrect Design of Footpath

Railing erected &

grooves on footpath

Steep footpath

P bli ti & G idP bli ti & G id


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Street Works Proposal related to

Development Works

Publications & GuidesPublications & Guides

Available in the LTA &Available in the LTA &

Corenet WebsitesCorenet Websites

Development & Building Control

http://www.lta.gov.sg/dbc/index_dbc_other.htmhttp://www.lta.gov.sg/dbc/index_dbc_other.htm

http://www.corenet.gov.sg/einfo/http://www.corenet.gov.sg/einfo/

St d d D t il f R dSt d d D t il f R d


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Standard Details of RoadStandard Details of Road

ElementsElements

Available in the Corenet Website underAvailable in the Corenet Website underCORENET eCORENET e--Information SystemInformation System

http://www.lta.gov.sg/dbc/index_dbc_other.htmhttp://www.lta.gov.sg/dbc/index_dbc_other.htm

http://www.corenet.gov.sg/einfo/http://www.corenet.gov.sg/einfo/

P bli ti & G idP blications & G ides


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Materials & Workmanship SpecificationsMaterials & Workmanship Specifications

for Civil & Structural Worksfor Civil & Structural Works

Can be obtained from theCan be obtained from the

LTA websiteLTA website

Publications & GuidesPublications & Guides


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Publications and ReferenceGuides in the Website


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__ _ _ __ _T

website

ebsite

Click on Regulations

Click on

Street proposals

Click on Development Control & Regulations

Click on

Street proposals

__ _ _ __ _T

website

ebsite


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Civil Design Criteria

Architectural Design Criteria

Standard Details of Roads Elements

Circulars


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ObjectivesObjectives

To share on theTo share on the

Requirements of LodgementRequirements of Lodgement

Benefits of LodgementBenefits of Lodgement

Scope of Presentation forScope of Presentation for


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Scope of Presentation forScope of Presentation for


Flow Chart for Lodgement of Street PlanFlow Chart for Lodgement of Street Plan

Types of Development that can be LodgedTypes of Development that can be Lodged

Lodgement via CorenetLodgement via Corenet

Advantages of LodgementAdvantages of Lodgement

What you cannot LodgeWhat you cannot Lodge



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QP (Civil) preparesQP (Civil ) prepares

the street plans forthe street plans for

BP ClearanceBP Clearance

QP (Civil) lodges the street plans with LTAQP (Civi l) lodges the street plans with LTA

LTA issue an auto generated acknowledgement letterLTA issue an auto generated acknowledgement letter

Development Control (DC) ApprovalDevelopment Control (DC) Approval

On completion of works,On completion of works,

PE request for CSC clearance (inspection by LTA)PE request for CSC clearance (inspection by LTA)

LTA grant CSC Clearance.LTA grant CSC Clearance.

Can be Lodged ?Can be Lodged ?

Yes

No

Types of Developments thatTypes of Developments that


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Can be LodgedCan be Lodged

(not affected by road reserve lines)(not affected by road reserve lines)::

ResidentialResidential (all types(all types)) IndustrialIndustrial

Educational InstitutionsEducational Institutions

Places of WorshipPlaces of Worship

Health and Medical Care EstablishmentsHealth and Medical Care Establishments

Sports and Recreation CenterSports and Recreation Centerss Civic and Community InstitutionsCivic and Community Institutions

Conservation BuildingConservation Building

R id ti l ( ll t )R id ti l ( ll t )


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Residential (all types)Residential (all types)

Detached Semi- Detached

Condominium Residential Apartment

Industrial (Factory Warehouse)Industrial (Factory Warehouse)


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Industrial (Factory, Warehouse)Industrial (Factory, Warehouse)

Educational InstitutionsEducational Institutions


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Primary Schools

Secondary Schools

ITE, Polytechnic,University



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TempleTemple

ChurchMosque

Ci i & C it I tit tiCivic & Community Institution


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Community Club

Civic & Community InstitutionCivic & Community Institution

Police Headquarters


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Conservation Building



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AttachmentsAttachments required for Lodgement of Streetrequired for Lodgement of Street

Plan via Corenet :Plan via Corenet :

Street PlanStreet Plan

Development Control (DC) ClearanceDevelopment Control (DC) Clearance

Written Permission (WP) from URAWritten Permission (WP) from URA

ee--FormForm


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LodgementLodgement

Select LodgementSelect Lodgement


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PE must completePE must complete

the declarationthe declaration


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Faster clearanceFaster clearance

(Immediate reply generated from system)(Immediate reply generated from system)

Expedite the process of the entireExpedite the process of the entire

developmentdevelopment

No resubmissionNo resubmission



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Plans involvingPlans involving

Traffic PlanTraffic Plan

New Street under S18 of SWANew Street under S18 of SWA

Development with road widening plotsDevelopment with road widening plots

Provision or modification of road relatedProvision or modification of road relatedfacil ities (facilities (egeg. covered linkways, b. covered linkways, bus stop)us stop)

Entrance approach steeper than 1:10Entrance approach steeper than 1:10

NonNon--standard design of entrance culvertstandard design of entrance culvert

Completed Lodged CasesCompleted Lodged Cases


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8m wide entrance access

New slab-overdrain / footpath

Connection to existing

footpath

Type B aluminium

alloy railings

Completed Lodged CasesCompleted Lodged Cases

Random ChecksRandom Checks


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Random ChecksRandom Checks

LTA would carry out random checks on theLTA would carry out random checks on the

lodge Street Planslodge Street Plans

If details of Street Works do not comply withIf details of Street Works do not comply with

LTALTAs guidelines, a written direction to thes guidelines, a written direction to the

QP (Civil) will be issuedQP (Civil) will be issued

Any deviation discovered during CSCAny deviation discovered during CSCinspection, the PE will have to demolish theinspection, the PE will have to demolish the

completed works and reconstruct the Streetcompleted works and reconstruct the Street

WorksWorks


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Documents

All LTA Work Instruction