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Presentation sidra

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UNDER SUPERVISION OF Prof. Dr. Hj. Amiruddin Ismail Prepared by : HAMZAH ALI P 63147 HOOMAN P ZURINDA BT MAT RABU P OPTIMIZATION OF TRAFFIC FLOW BY USING SIDRA INTERSECTION
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UNDER SUPERVISION OF Prof. Dr. Hj. Amiruddin Ismail

Prepared by : HAMZAH ALI P 63147HOOMAN PZURINDA BT MAT RABU P

OPTIMIZATION OF TRAFFIC FLOW BY USING

SIDRA INTERSECTION

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Contents

Introduction

Input

Output

Conclusion

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INTRODUCTION

INTERSECTION

Allow the change of

route directions of traffic flows.

Traffic control

systems are capable to

reduce delays and crashes on

intersection

Problem of delay still

occurs

An area which shared

by two or more roads.

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SIDRA

• Estimate of capacity and performance characteristics

• Analyze and optimize the intersections

• Determine signal timing

• Carry out a design life analyze for traffic growth

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SIDRA INTERSECTION User

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Advantages of using sidra

Use the parameter sensitivity

Use a lane-by-lane analysis method

Consistent with the US Highway capacity manual

Provide a Excel application to support model comparison

Estimate operation cost , fuel consumption , co2 & other emission

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Study objective

• The main objective of the Study is to prepare low cost

solutions to an existing intersection

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Study area

• The intersection is located in front of the main entrance of UKM.

• North side :Toll Bangi/Bandar Baru Bangi

• South side : UKM

• West side come from Bangi and will end to Kajang at East .

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N

To KajangTo

Bangi

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Data's 8-9 am & 6 – 7 pm

• Duration 15min => extended to 1hour

• Considerations : Vehicle types, direction, speed (to gain mean speed)

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PCU / UNIT

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Input Part OF SIDRA INTERSECTION Software

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Creating a new site and select an intersection type

First, to create our site, we select signals type

according to our case study

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Intersection Input dialog and insert data

We use the Intersection input dialog to establish the basic intersection configuration

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Intersection Input dialog and insert data

To Insert or delete an intersection leg we

should just click the leg

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Intersection Input dialog and insert data

Title: Four way intersection/grop 7

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Intersection Input dialog and insert data

Intersection ID: UKM

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Intersection Input dialog and insert data

Signal analyze method: fixed-time/pretimed

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Intersection Input dialog and insert data

These data apply to intersection as a whole.

Unit Time for Volumes: 60 minutesPeak Flow Period : 30 minutes

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Geometry Input dialog

Geometry node and Geometry Input dialog

The Geometry input dialog is used to configure approach and exit lanes, modify movements and insert other characters

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Geometry Input dialog (Lane & movements tab)

we should click a desirable leg to select it

To select a desirable lane, we should just click the lane

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Geometry Input dialog (Lane & movements tab)

we should click a desirable leg to select it

We can insert one approach and exit lane by clicking these

buttons for the selected leg

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Geometry Input dialog (Lane & movements tab)

we should click a desirable leg to select it

We can allocate desirable movements by clicking these buttons to

the selected lane

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Geometry Input dialog (Lane & movements tab)

we should click a desirable leg to select it

In this boxes we can input lane type, short lane, and lane length

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Geometry Input dialog (Lane & movements tab)

we should click a desirable leg to select it

To specify a Median for the selected leg, we should click the

Median check box and then insert the width of Median

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Geometry Input dialog (Lane data tab)

we input 3.3m for the width of lanes and 0 for

grads

we should click a desirable leg to select it

We choose1800 PCU/h for Basic

Saturation Flow

And accept the other defaults for this part

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Volume Input dialog

We choose separate LV & HV method to insert vehicle volume

We input the collected volume data for the selected

direction according to separate LV & HV method

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Figure of Volume Summary (volume summary node)

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PATH DATA dialog

We insert MOVEMENT PATH DATA for the

selected direction

For example for our site, approach cruise speed is 30km/h

Negotiation Speed, Negotiation Distance, and Downstream Distance will

be calculated by the program

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Specify the items in PATH DATA dialog

Vehicle’s speed at this point is Approach Crouse Speed

(Vac)

Approach travel Distance

Vehicle reaches Exit Crouse

Speed (Vec) at this point

APPROACH under consideration

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MOVEMENT DATA input dialog

The defaults of program for Movement

data are Accepted

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Priorities input dialog

Priorities dialog establishes Opposing movements for the selected movement

Select movement to be defined as

opposed movement

Click desirable movements to define them as opposing/not opposing

movements

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GAP-ACCEPTANCE DATA dialog

The

For GAP-ACCEPTANCE DATA We give the default values to the

program

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Phasing & Timing input dialog

In Phasing & Timing input dialog We use command buttons to edit

We must click this box in order to designate it as the Current Sequence , Which is analyzed by the program

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Phasing & Timing input dialog

Clone Sequence button is used to create a new Sequence for editing

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Phasing & Timing input dialog

Clone Phase button is used to create a new Phase for editing

The UKM Intersection is a Four Phase Intersection

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Phasing & Timing input dialog

For Vehicle Movement Timing Data we accept the defaults

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Phasing & Timing input dialog

In Phase Data dialog, we insert the Phase Time for each phase

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Model Settings input dialog

The parameters of MODEL SETTING affect the results significantly. However,

the defaults of parameters are appropriate generally

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Input Report node

We can get the summery of input data in the Input Report node

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Output Part OF SIDRA INTERSECTION Software

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Total delay (average)

4640.7

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Level of Service

LOS Signalized Intersection

Unsignalized Intersection

A ≤10 sec ≤10 secB 10-20 sec 10-15 secC 20-35 sec 15-25 secD 35-55 sec 25-35 secE 55-80 sec 35-50 secF ≥80 sec ≥50 sec

A= Free flowB=Reasonably free flowC=Stable flowD=Approaching unstable flowE=Unstable flowF=Forced or breakdown flow

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16500.6

Total cost

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970

Total fuel

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2430.4

Total CO2

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Review:

what is our plan?

collecting data(input)

for simulation(output)

optimizing (output)current situation

OPTIMIZING THE UKM INTERSECTION

CHOOSING OPTIMUM CYCLE TIME

CHANGING CURRENT PHASE TIME

ADDING SLIP LANE ON ALL APPROACHES

ADDING ONE APPROACH & EXIT LANE IN ALL DIRECTIONS

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OPTIMIZING CYCLE : TIMECHANGIN G CYCLE TIME FROM 164 TO 150

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SECOND MODIFICATION : CHANGING CURRENT FOUR PHASE TO TWO PHASE

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THIRD MODIFICATION : ADDING SLIP LANES INTO THE ALL APPROACHES

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FOURTH MODIFICATION : ADDING LANE INTO EACH APPROACH & EXIT WAY

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ADDING LANE INTO EACH APPROACH & EXIT WAY

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1 2 3 40

500

1000

1500

2000

2500

3000

co2 (kg/h)

co2 (kg/h)

MODIFY 2 MODIFY 3CURRENT MODIFY 2

1 2 30

10

20

30

40

50

60

70

80

DECREASING OF CO2 (%)

DECREASING CO2 (%)

MODIFY 1 MODIFY 2 MODIFY 3

74 %

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1 2 3 40

2000

4000

6000

8000

10000

12000

14000

16000

18000

COST (RM)

COST (RM)

MODIFY 2 MODIFY 3CURRENT MODIFY 1

1 2 30

10

20

30

40

50

60

70

80

90

DECREASING OF COST (%)

DECREASING CO (%)

MODIFY 1 MODIFY 2 MODIFY 3

82.68 %

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1 2 3 40

200

400

600

800

1000

1200

FUEL (LITRE)

FUEL (LITRE)

MODIFY 2 MODIFY 3CURRENT MODIFY 1

1 2 30

10

20

30

40

50

60

70

80

DECREASING OF FUEL (%)

DECREASING FUEL (%)

MODIFY 1 MODIFY 2 MODIFY 3

74 %

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1 2 3 40

500

1000

1500

2000

2500

3000

3500

4000

4500

5000

AVERAGE DELAY (SECOND)

AVERAGE DELAY (SECOND)

MODIFY 1 MODIFY 3CURRENT MODIFY 2

1 2 30

10

20

30

40

50

60

70

80

90

100

DECREASING OF AVERAGE DELAY (%)

DECREASING AVERAGE DELAY (%)

MODIFY 1 MODIFY 2 MODIFY 3

93.38 %

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Thank you


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