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Contents

1 Introduction 1

1.1 Simulations ............................. 1

1.2 Goals ................................ 4

1.3 Outline ............................... 4

2 Optimization and adaptation of traffic lights 5

3 GLD and iAtracos 8

3.1 GLD ................................. 8

3.2 iAtracos ............................... 9

4 Coding process 10

4.1 Open source ............................. 10

4.2 Reverse engineering ......................... 11

4.2.1 Speed of roadusers and its representation on a drivelane . 11

4.2.2 Nodes and subclasses .................... 11

4.2.3 Roadusers and how they move ............... 12

4.2.4 Traffic light controllers ................... 14

4.2.5 Probability on enter/exit nodes ............... 17

4.2.6 Statistics .......................... 17

4.3 List of modifications ........................ 17

4.3.1 Change size of blocks to model speed in m/s ....... 17

4.3.2 Acceleration and deceleration of road users and respect-
ing stop-distance ...................... 18

4.3.3 Support for primary lanes ................. 20