Rookery South Resource Recovery Facility (RRF)

Community Liaison Panel

Transport Presentation – 14th December 2009

John Hopkins, Peter Brett Associates

Introduction

Today’s presentation will provide additional information on:– traffic flows from Covanta’s RRF;

– future forecast traffic flows on the highway;

– traffic impact and junction capacity assessments;

– environmental impact;

– construction traffic flows.

Obviously, although all this is work in progress, Covanta

remain committed to keeping the CLP fully informed

throughout this process.

Rookery South RRF Context

64 staff employed on site every day; RRF operation to work “24-7”; waste to be delivered into the site Monday to

Saturday only; anticipated 182 HGV deliveries per day for

Nominal throughput of 585,000tpa; a highly theoretical Maximum 318 HGV

deliveries per day also assessed for 645,000tpa throughput;

all HGV access via Green Lane.

Vehicle trip distribution

Covanta will commit to a Route Management Plan to ensure delivery contractor HGV compliance;

except for employees residing locally, employees will be contractually required to be routed via Green Lane;

different distributions for HGV movements and employees anticipated as:

Distribution HGVS Employees

East – from Stewartby 0% * 11%

North – along old / new A421

27 - 36% 70%

South – along old / new A421

64 - 73% 15%

West – via Wootton 0% * 4%

* except for council household waste collection in the local area

HGV movement times - context

unknown waste material sources - difficulty providing definitive information whilst contractual procurement negotiations ongoing;

Rookery South RRF delivery times need to respond to the clients’ requirements;

delivery times therefore set by planning parameters; informed and advised by the Acoustics Assessment,

showing additional delivery noise within acceptable standards (work still ongoing with the EHOs);

maintaining operational flexibility to respond to future changes - within agreed limits.

Proposed HGV movement times

HGV movements limited to 05:00 to 23:00; HGV movements in the first hour (05:00 - 06:00) relate

to parked bulk haulage vehicles leaving empty only – up to 15 outbound trips;

first deliveries from 06:00 to 07:00 - up to 20 HGV movements;

majority of deliveries (76% - 87%) anticipated from 08:00 to 17:00;

Covanta is seeking future operational flexibility.

Daily Arrival Patterns - Nominal

For the Nominal (585ktpa) throughput, weekday two-way flows:Time Commentary HGVs Cars / Buses0000 - 0100

0100 - 0200

0200 - 0300

0300 - 0400

0400 - 0500

0500 - 0600

0600 - 0700

0700 - 0800

0800 - 0900

0900 - 1000

1000 - 1100

1100 - 1200

1200 - 1300

1300 - 1400

1400 - 1500

1500 - 1600

1600 - 1700

1700 - 1800

1800 - 1900

1900 - 2000

2000 - 2100

2100 - 2200

2200 - 2300

2300 - 0000

TOTAL

Drivers in, bulk haulage lorries leaving

First C and I deliveries arriving

Bulk haulage lorries return, drivers off

0

0

0

0

0

7

40

40

22

23

32

50

34

24

44

42

6

0

0

0

0

0

0

0

364

0

0

0

0

0

9

13

33

17

6

2

3

3

10

2

2

23

29

10

6

0

0

0

0

168

Daily Arrival Patterns - Maximum

For the Maximum (645ktpa) throughput, weekday two-way flows:Time Commentary HGVs Cars / Buses0000 - 0100

0100 - 0200

0200 - 0300

0300 - 0400

0400 - 0500

0500 - 0600

0600 - 0700

0700 - 0800

0800 - 0900

0900 - 1000

1000 - 1100

1100 - 1200

1200 - 1300

1300 - 1400

1400 - 1500

1500 - 1600

1600 - 1700

1700 - 1800

1800 - 1900

1900 - 2000

2000 - 2100

2100 - 2200

2200 - 2300

2300 - 0000

TOTAL

Drivers in, bulk haulage lorries leaving

First C and I deliveries arriving

Bulk haulage lorries return, drivers off

0

0

0

0

0

7

36

50

46

65

52

68

58

62

76

74

42

0

0

0

0

0

0

0

636

0

0

0

0

0

9

13

33

17

6

2

3

3

10

2

2

23

29

10

6

0

0

0

0

168

Questions and Answers

A421 Traffic Model - included development

Forecast Traffic Flows –

Nominal Throughput - All Vehicle Daily flows

Additional RRF Flows

Green Lane– West – 517 vehicles– East – 15 cars

Stewartby Way– 15 cars

Old A421– North – 216 vehicles– South – 301 vehicles

Forecast Traffic Flows – Nominal Throughput – All Vehicle AM Peak Hour flows

Additional RRF Flows

Green Lane– West – 75 vehicles– East – 6 cars

Stewartby Way– 6 cars

Old A421– North – 48 vehicles– South – 28 vehicles

Forecast Traffic Flows – Nominal Throughput - Heavy Goods Vehicle Daily flows

Additional RRF Flows

Green Lane– West – 364 HGVs(Landfill – 320 – until Dec 2014)

– East – 0 HGVs

Stewartby Way– 0 HGVs

Old A421– North – 101 HGVs– South – 263 HGVs

(Excluding the local waste collections)

Forecast Traffic Flows – Nominal Throughput - Heavy Goods Vehicle AM Peak Hour flows

Additional RRF Flows

Green Lane– West – 22 HGVs– East – 0 HGVs

Stewartby Way– 0 HGVs

Old A421– North – 6 HGVs– South – 16 HGVs

(Excluding the local waste collections)

Forecast Traffic Flows – Maximum Throughput - All Vehicle Daily flows

Additional RRF Flows

Green Lane– West – 804 vehs– East – 15 cars

Stewartby Way– 15 cars

Old A421– North – 376 vehs– South – 428 vehs

Forecast Traffic Flows – Maximum Throughput - All Vehicle AM Peak Hour flows

Additional RRF Flows

Green Lane– West – 99 vehs– East – 6 cars

Stewartby Way– 6 cars

Old A421– North – 65 vehs– South – 34 vehs

Forecast Traffic Flows – Maximum Throughput - Heavy Goods Vehicle Daily flows

Additional RRF Flows

Green Lane– West – 636 HGVs(Landfill – 320 – until Dec 2014)

– East – 0 HGVs

Stewartby Way– 0 HGVs

Old A421– North – 261 HGVs– South – 375 HGVs

(Excluding the local waste collections)

Forecast Traffic Flows – Maximum Throughput - Heavy Goods Vehicle AM Peak Hour flows

Additional RRF Flows

Green Lane– West – 46 HGVs– East – 0 HGVs

Stewartby Way– 0 HGVs

Old A421– North – 23 HGVs– South – 23 HGVs

(Excluding the local waste collections)

Traffic Impact Summary - 2014

(all impacts relate to the Nominal throughput)

Green Lane (East of Site Access)– Daily - 0.4% All Vehicle, 0% HGV;– AM Peak - 1% All Vehicle, 0% HGV;

Green Lane (West of Site Access)– Daily - 23% All Vehicle, 448% HGV;– AM Peak - 20% All Vehicle, 230% HGV;

Stewartby Way– Daily - 0.4% All Vehicle, 0% HGV;– AM Peak - 1% All Vehicle, 0% HGV;

Traffic Impact Summary

(all impacts relate to the Maximum throughput)

Old A421 (North)– Daily - 6% All Vehicle, 33% HGV;– AM Peak - 10% All Vehicle, 24% HGV;

Old A421 (South)– Daily - 5% All Vehicle, 22% HGV;– AM Peak - 3% All Vehicle, 13% HGV;

Questions and Answers

Junction Capacity Summaries

PARAMICS runs to follow– Nominal throughput

– Maximum throughput

Site Access / Green Lane Junction

Junction Capacity Summaries - AM

2014 - Without RRF– RFC = 0.547– Queue = 2 vehicles

2014 - With RRF– RFC = 0.598– Queue = 2 vehicles

Green Lane / A421 Priority Junction

Source - Google Maps

Junction Capacity Summaries

A421 / Marston Moretaine Junction

Plan supplied by Jacobs Consultancy Marston Northern Roundabout– 2014 - Without RRF

RFC = 1.15 (Beancroft Rd (N) Queue = 55 vehicles

– 2014 - With RRF RFC = 1.18 (Beancroft Rd (N) Queue = 64 vehicles

Junction Capacity Summaries

A421 / Marston Moretaine Junction

Plan supplied by Jacobs Consultancy Marston Middle Roundabout– 2014 - Without RRF

RFC = 0.84 Queue = 5 vehicles

– 2014 - With RRF RFC = 0.86 Queue = 6 vehicles

Junction Capacity Summaries

A421 / Marston Moretaine Junction

Plan supplied by Jacobs Consultancy Marston Southern Roundabout– 2014 - Without RRF

RFC = 0.75 Queue = 3 vehicles

– 2014 - With RRF RFC = 0.76 Queue = 3 vehicles

Junction Capacity Summaries

Marsh Leys Roundabout – part signalised

Drawing supplied by Jacobs Consultancy Without RRF– DoS = 88% (Western Bypass arm)– Queue = 13

With RRF– DoS = 89% (Western Bypass arm)– Queue = 14

Questions and Answers

Environment impact of traffic flows

“Magnitude” of change in flow is identified as ‘large’, ‘medium’, ‘small’ or ‘negligible’ according to set criteria;

“Receptors” are identified early and categorised into ‘high’, ‘medium’, ‘low’ and ‘negligible’ sensitivities based on current guidance;

the two sets of information are compared to give the “significance of effect” of the traffic.

the minimum threshold for Fear and Intimidation is set by average hourly traffic flows in excess of 600 additional all vehicle trips per hour across an 18 hour day, and total 18 hour HGV flows in excess of 1,000.

Taken from: Institute of Environmental Assessment’s Guidelines for Environmental Assessment of Road Traffic (1993) Department of Transport Manual of Environmental Appraisal (1983)Crompton and Gilbert – “Pedestrian Delay Annoyance and Risk” (1981)

Environmental Impact of traffic flows

Significance of Effects of the Traffic

Sensitivity of Receptors

Highe.g. Schools

AccidentBlackspots

ResidentialHomes

Mediume.g. Congestedjunctions

CommunityCentres

Lowe.g. ListedBuildings

Public openspace

Churches

NegligibleReceptors ofvery lowsensitivity totraffic flows

Magnitudeof Changein trafficflow /Conditions(both in allvehicle andHGV)

Large > 90% VerySubstantial

Substantial Moderate Insignificant

Medium 60%-90% Substantial Substantial Moderate Insignificant

Small 30%-60% Moderate Moderate Slight Insignificant

Negligible < 30% Insignificant Insignificant Insignificant

Insignificant

Plan Showing Sensitivity of Receptors throughout the Area

Environmental Impact of traffic flows

Significance of Effects of the Traffic

Sensitivity of Receptors

Highe.g. Schools

AccidentBlackspots

ResidentialHomes

Mediume.g. Congestedjunctions

CommunityCentres

Lowe.g. ListedBuildings

Public openspace

Churches

NegligibleReceptors ofvery lowsensitivity totraffic flows

Magnitudeof Changein trafficflow /Conditions(both in allvehicle andHGV)

Large > 90% VerySubstantial

Substantial Moderate Insignificant

Medium 60%-90% Substantial Substantial Moderate Insignificant

Small 30%-60% Moderate Moderate Slight Insignificant

Negligible < 30% Insignificant Insignificant Insignificant

Insignificant

Plan showing Significance of Effect of Traffic on Sensitive Receptors

Environmental Impact of traffic

Summary of Impact, Maximum throughput, 2014:

Green Lane (west of Site Access)– Magnitude of change in All Vehicle flow = ‘Negligible’– Magnitude of change in HGV flow = ‘Large’;– no sensitive receptors;– Significance = ‘Insignificant’.

A421

Questions and Answers

Construction trips

details cannot be confirmed until Covanta has appointed a Contractor yet;

Covanta commits to a RMP to ensure only Green Lane used by deliveries and non-local employees;

two worst case assessments:i) assuming realistic HGV inbound movements in the AM peak;

ii) assuming workers coming in between 0700 – 0800 in the morning.

Construction trips

Site Access / Green Lane Junction

PARAMICS runs– Realistic HGV movements (AM peak)

– Maximum Workforce movements (0700 – 0800)

Questions and Answers