Automated Real-Time Intelligent Traffic Control System for Smart Cities Using Wireless Sensor Networks

Pseudocode 1

Behavior of different sensor nodes in a road crossing.

1: All the nodes of each crossroads execute out self-organization protocol to form a cluster-free network topology

2: Cluster Head Selection in each Cluster

3: For i=1 to N do   //N: Number of the crossroad in the city

4: For j=1 to M do //M: Number of the nodes in the crossroad

5:  Execute flowchart // execute flowchart of validation of the detection state by the nodes (Figure 17)

6:  T⟵flowchart// flowchart: return 1 occupied state, return 0 open state

7:  If (T==1)then  //return 1 occupied state

8:   Sensor node prepares the corresponding data structure with occupied state

9:   If (Sensor node is a cluster head) then

10:    Sensor node uses the aggregation of all the data received from these members

11:    Sends all information to the neighboring Cluster Head or to the Gateway depending on its next hop

12:   Else

13:    Sensor node prepares the corresponding data structure according to its role in the crossroad

14:    Sends those data to its Cluster Head

15:   End if

16:  Else     //return 0 open state

17:   Sensor node prepares the corresponding data structure with open state

18:   Go to 9

19:  End if

20: End for

21: End for

22: Next round

23: Go to 2