QUEUE OBVIATION BY VARIABLE
DIRECTION AND INFORMATION SIGNS

DRIVE II PROJECT V2042

DELIVERABLE No.8
WORKPACKAGE No.7

OFF LINE CONTROL STRATEGY EVALUATION

DELIVERABLE TYPE: P
CONSTRACT DATE: JUNE 1994
SUBMISSION DATE: JULY 1995

COMMISSION OF THE EUROPEAN COMMUNITIES
R&D PROGRAMME: TELEMATICS SYSTEMS IN THE AREA OF TRANSPORT
DRIVE II

CONTENTS

1. GENERAL INTRODUCTION

2. MCONTRM VMS PLAN DEVELOPMENT

2.1 Introduction
2.2 Methology for MCONTRM VMS Strategy Development
2.3 Examples of MCONTRM VMS Strategies
2.4 Examples of MCONTRM VMS Plans
2.5 Examples of the MCONTRM VMS Plans

3. MCONTRM BASED VMS STRATEGY DEVELOPMENT AND OFF-LINE EVALUATION FOR THE AALBORG NETWORK

3.1 Introduction
3.2 Methodology for control strategy development via MCONTRM
3.3 Other control strategy development input
3.4 Control algorithm
3.5 Conclusion

4. EXPERT SYSTEM APPROACH: OPERA

4.1 The OPERA Approach
4.2 The Expert System Rules

4.2.1 General Principle of Strategy Generation
4.2.2 Operation

4.3 Evaluation of Strategies

4.3.1 Method
4.3.2 Description of Tested Scenarios
4.3.3 Description of OPERA Strategies
4.3.4 Results
4.3.5 Comments

5. AUTOMATIC CONTROL APPROACH

5.1 Automatic Control Approach on the Scottish Site

5.1.1 Introduction
5.1.2 Design of Control Algorithm
5.1.3 Off-line Control Strategy Evaluation

5.2 Off-line Simulation Studies on the Aalborg Site

5.2.1 Introduction
5.2.2 Guidance Control Strategy Development
5.2.3 Results

Annex A: MCONTRM VMS PLAN DEVELOPMENT PROCESS

Annex B: MCONTRM BASED STRTEGY DEVELOPMENT AND OFF-LINE EVALUATION FOR THE AALBORG NETWORK

Annex C: EXPERT SYSTEM APPROACH: OPERA

Annex D: EVALUATION OF AUTOMATIC CONTROL APPROACH FOR SCOTTISH SITE

Annex E: AUTOMATIC CONTROL OFF-LINE SIMULATION STUDIES ON AALBORG TEST SITE

Annex F: COMPARISON OF OFF-LINE EVALUATION RESULTS

GENERAL INTRODUCTION

The deliverable is intended to give a report of the off-line studies which were conducted in order to test and evaluate control strategies for both QUO VADIS test sites.

Each of the three control approaches considered within QUO VADIS has been able to produce strategies considered acceptable, in off line testing, to the network managers.

Following this brief introduction Chapter 2 describes the work undertaken by TRL towards Plan Development, using the MCONTRM model. It explains the need for a consistent methodology for plan development and assessment. The system devised in consultation with Oscar Faber TPA is based on modelling selected scenarios, and then analysing the results with respect to a set of network wide indicators. The aim is to produce a record of information for Plan Development in a consistent, flexible form which can be produced by other users, and applied to situations where other modelling techniques might have been used. Examples of the method are demonstrated.

MCONTROM has also been used to develop VMS strategies for the Danish test site in Aalborg. Chapter 3 of this Deliverable is dedicated to the description of this work.

Chapter 4 describes the Expert System approach adopted in OPERA. This Chapter is devided into three sections. The first explains the control approach adopted in OPERA, the second explains the expert system rules and the third deals with the evaluation of strategies.

Chapter 5 concerns the Automatic Control approach. This approach is implemented on both test sites, i.e. on the Scottish site as well as the Danish site in Aalborg. The first section describes the Automatic Control strategy as realized for the Scottish site and reports the results of the off-line studies while the second section deals with the evaluation of Automatic Control as implemented in Aalborg.