Transport planning things you need to know rev 1

Transportation Planning5 Key Things Our Clients Need to Know

Presented by Ronan Kearns, B.A, B.A.I, MSc, CEng MIEI

Senior Transport Planner, Dublin

ronan.k@adviceyoucanbuildon.com

Purpose of Presentation

Understand what our Clients need to know Be able to offer high level advice to existing/prospective

clients in the area of roads and transportation Give advice on costs and programme for completion of a

TIA

1. Feasibility 2. Engineering3. Need4. Scoping5. TIA

Presentation outline

1. Feasibility 2. Engineering3. Need4. Scoping5. TIA

Presentation outline

Feasibility

Having Pinnacle onboard at an early stage results in: Reduced design period Reduced costs as less iterations are involved Designs conform more readily to engineering design

standards

Pinnacle can offer design advice on the following: Road layouts including junction radii, turning circles

and sight line provision, etc; Parking layout Identification of issues likely to have an impact on

budget and/or costs; Investigate the feasibility of several options in

parallel with the design team

FeasibilityCommon issues to look out for

Has the minimum car parking dimensions been catered for?

In the case of a commercial/retail development the number of disabled spaces to be provided ranges from 4-10% of total spaces. A similar amount is provided for “mother & baby” spaces

FeasibilityCommon issues to look out for

Has the 6.0m carriageway been provided? Anything less will result in difficulties for vehicles to access the spaces safely.

Angled parking should only be used in situations were a two-way system would reduce parking numbers

FeasibilityCommon roads input advice

For junctions on to highway min radius should be 10mFor internal estate roads this can be relaxed to 6m

Road Category

Max. Length of straight

section of road

Shared Surface

40m

Cul-de-sac 60m

Access (<50

houses)

60m

Access (>50

houses)

100m

Vehicle Type

Radius(m)

Private Car

6

Fire Engine

9

Refuse Vehicle

10

Furniture

Removal

11

Road Width

(m)

Max. Gully

Spacing(m)

5.5-6.5 55

7.5 50

9.0 40

10.0 35

In order to prevent speeding the length of straight road should be minimised with either horizontal or vertical deflection

FeasibilitySight Lines

Major Road Type

Major Road Speed (mph)

X (m) Y (m)(Excluding bonnet allowance)

Y (m)(Including bonnet allowance)

Secondary Distributor

40 4.5 66 66

Local Distributor

30 4.5 43 43

Major Access Road

25 2.4 31 33

Minor Access Road

30 2.4 22 25

Shared Surface Road

10 2.4 9 11

Industrial Road 25 4.5 50 50

FeasibilityParking Standards

Residential Dwellings(Use Class C3)

Cycle parkingstandards (minimum)

Car ParkingStandards(maximum)

ServicingRequirements

Norwich (Link) One covered and secure cycle storage space or shed per dwelling.

Cycle parking for visitors is required in the vicinity.

1 and 2 bed units: 1 space per dwelling3+ bed units: 2 spaces per dwelling.On average, developments shouldaverage 1.5 parking spaces per unit orfewer.

Access for emergency services, removal lorries, refuse vehicles will be necessary.

Herefordshire –Welwyn Hatfield (Zone 1 & 2) (Link)

One l/t space provided per dwelling if no storage or shed is provided

1 bed: 0.75 space per dwelling2 bed: 1 space per dwelling3 bed: 1.5 spaces per dwelling4 or more: 2 spaces per dwelling

Access for emergency services, removal lorries, refuse vehicles will be necessary.

Wiltshire Council (Link)

Not available 1 bed:1space per dwelling2-3 bed: 2 space per dwelling4 or more: 3 spaces per dwellingVisitor spaces: 0.2 per dwelling (unallocated)

Access for emergency services, removal lorries, refuse vehicles will be necessary.

Greater Manchester – Trafford Council (Area B) (Link)

1 space per 20 dwellings (minimum of 2)

1 bed:1space per dwelling2-3 bed: 2 space per dwelling4 or more: 3 spaces per dwelling

Access for emergency services, removal lorries, refuse vehicles will be necessary.

1. Feasibility 2. Engineering3. Need4. Scoping5. TIA

Presentation outline

Engineering

Clients need to be aware of the following when considering engineering specifications and/or costs:

Section 278 Agreement (Section 278 of the Highways Act 1980) (Link) – Need to carry out works to the public highway

Section 38 Agreements (Section 38 of the Highways Act 1980) (Link) – Needed for development roads to be adopted

Section 104 Agreements (Water Industry Act 1991)- Needs to completed before a Section 38 Agreement

Engineering

Clients need to be aware of the following when considering engineering specifications and/or costs:

Section 278 Agreement (Section 278 of the Highways Act 1980) (Link) – Need to carry out works to the public highway

Section 38 Agreements (Section 38 of the Highways Act 1980) (Link) – Needed for development roads to be adopted

Section 104 Agreements (Water Industry Act 1991)- Needs to completed before a Section 38 Agreement

A Typical Adoptable Highways Specification

Traffic Loading – 2-5 msa•Local Distributor Road•Residential Street•Estate Road

Layer Depth Material

Surface Course 40mm HRA 35/14 F surf 40/60, CL 911

Binder Course 60mm AC20 HDM bin 40/60 des, CL 929

Base 140mm AC32 HDM bin 40/60 des, CL 929

Foundation 420mm Type 1 unbound mixture, CL 803

660mm

1. Feasibility 2. Engineering3. Need4. Scoping5. TIA

Presentation outline

Need

A TIA is generally required where either of the following conditions are met:

Traffic to and from the development exceeds 10% of the two-way traffic flow on the adjoining highway.

Traffic to and from the development exceeds 5% of the two-way traffic flow on the adjoining highway, where traffic congestion exists or will exist during the assessment period.

To quickly assess the need assume the following: 35% of dwellings will have a peak period arrival/departure i.e.

for every 100 dwellings there will be 35 AM departures and 35 PM arrivals

A two way-way traffic flow of 2100 Calculate the % change and double it

1. Feasibility 2. Engineering3. Need4. Scoping5. TIA

Presentation outline

Scoping

Scoping carried out with developer & highway authority to agree key aspects of the project that the TIA should address. This would include

Data to be collected (traffic counts, speed surveys, pedestrian surveys etc)

The areas of analysis (minimum development access on to highway; consider also other key local junctions with known issues)

TIA methodology (imperial for “typical” developments, micro-simulation for developments with multi modal impacts)

Pinnacle’s input to scoping: Identification of areas of analysis Pre planning meeting with highway authority Commission traffic counts (Costs vary depending on

complexity - £1000 upwards)

Scoping

Typical scoping drawing

ScopingTraffic Counts

Pinnacle has long established relationships with various traffic survey companies. We can recommend the following survey companies:

Count On Us Traffic Wise - Fraser Menzies Traffic Watch – Amanda Work

ScopingTraffic Counts

Pinnacle has long established relationships with various traffic survey companies. We can recommend the following survey companies:

Count On Us Traffic Wise - Fraser Menzies Traffic Watch – Amanda Work

1. Feasibility 2. Engineering3. Need4. Scoping5. TIA

Presentation outline

TIA The TIA ‘process’ consist of 3 fundamental steps:

The determination of the need for a TIA The scope of the TIA The preparation of the TIA itself

A TIA is generally required where either of the following conditions are met:

Traffic to and from the development exceeds 10% of the two-way traffic flow on the adjoining highway.

Traffic to and from the development exceeds 5% of the two-way traffic flow on the adjoining highway, where traffic congestion exists or will exist during the assessment period.

TIAStructure

The format of the TIA depends on the complexity and size of the proposal, any Local Authority requirements and the type of permission sought.

Disabilities/Public Transport)

TIAStructure

The format of the TIA depends on the complexity and size of the proposal, any Local Authority requirements and the type of permission sought.

Disabilities/Public Transport)

TIAStructure

The format of the TIA depends on the complexity and size of the proposal, any Local Authority requirements and the type of permission sought.

Disabilities/Public Transport)

Receiving Environed Development Characteristics Highways Impact

Purpose Describes the existing conditions, both in quantitative terms and subjective descriptions

Describe and quantify the resulting traffic generated from the proposed development. Assessment of modal split and trip assignment onto public highway.

Determine the likely opening year of the development and the design horizon.

Application of network traffic growth factors to traffic surveys for the opening year and design year.

Traffic assessments on key links and junctions within the study area to indentify reserve capacity and queue length thus determining the impact the development has on the surrounding road network

Information required

Traffic Surveys; Local public transport information, Topographical survey of local highway ;

Local planning standards; Local area plans; Planning history; Frozen schedule of accommodation; Frozen road layouts; TRICS Database

Assignment flow diagrams. Access to relevant computer software packages.

TIAAnalysis

Highways Impact Determination of the impact the development will have on the

local highways network using the following: OSCADY ARCADY PICADY LinSig AutoTrack

OSCADY (Isolated Signalised Junctions)

ARCADY (Roundabouts)

TIAAnalysis

LinSig(Multi Location Signalised Junctions)

PICADY(Priority Junctions

AutoTrack (Swept Path Analysis

TIAAnalysis

We also have access to more sophisticated computer software programmes such as:

VISSIM VISSUM COBA SATURN

VISSIM (MicroSimulation)

VISSUM (MacroSimulation)

TIACosts

Number of Units

Complexity Time to Complete Costs

50 Low; Junctions to be analyzed readily known and close to site access

4-5 days after receipt of frozen accommodation schedule and drawings

Up to £5,000 to include:•Scoping discussions•Drafting & geometric design of internal layout•Junction assessment and report

150 Low to medium; Junctions to be analyzed readily know and close to site access. In congested areas highway authority to be consulted.

7-10 days after receipt of frozen accommodation schedule and drawings

Up to £8,000 to include:•Scoping discussions•Drafting & geometric design of internal layout•Junction assessment and report

300 Medium; Pre-planning consultation with high authority with highway authority to confirm scope of report

Once pre planning meeting has taken place, up to 15 days after receipt of traffic surveys and/or frozen accommodation schedule and drawings

€10,000 -£12,000 to include:•Scoping discussions•Drafting & geometric design of internal layout•Junction assessment and report

500 High; Scoping of project of critical importance. Pre-planning consultation with high authority a must

Once pre planning meeting has taken place, up to 15-20 days after receipt of traffic surveys and/or frozen accommodation schedule and drawings

Up to £15,000 to include:•Scoping discussions•Drafting & geometric design of internal layout•Junction assessment and reportPlease Note:

1. It is assumed that the development meets with relevant local guidelines and that on three/four junctions in the immediate vicinity will need to be analysed, should further assessment or detailed micro simulation be required this will be subject to additional fees.

2. All drawings to be passed on to us in a frozen state. Any changes that require updating of our drawings/analysis will be subject to additional fees.  3. Additional meetings to be charged at agreed hourly rate and to include travel expenses.4. Progress will be via E-Mail or Telephone discussion. 5. Traffic surveys to be invoiced to client

Email:

ronan.k@adviceyoucanbuildon.com

Thank you