A presentation prepared to the University of Malta as part of my MSc. Informatics. This seminar discusses ways and improvements how can a GIS driven system help and improve the current situation in Malta. This presentation also provides a survey discussing how the Maltese view the public transport and gives out interesting conclusions as to where the GIS needs to tackle. The study focuses mainly on ways as to where and how to improve the routes, promoting cultural places, buses ETA and taxi fleet handling amongst others.

1. Matthew Pulis MSc. Informatics Student University of Malta January 2009

7. Demographic Studies

8. Vehicle Details

9. Rating Malta’s Transport

10. Reactions to Govt. Proposals

11. Building the project Would electronic information tempt you to use the public transport more often? By electronic information it is understood that on every bus stop you get the ETA (Estimated Time of Arrival) of the next bus for example Will an SMS service where you can request the time of the next bus on a particular bus stop help you use the Public Transport Service more? Will a routing information screen help you increase your daily usage of Public Transport? By routing information screen, it is understood that you enter your starting bus stop and final location and the website returns to you the Bus Stop near the location, with a schedule of the upcoming bus routes with the ETA of each of the itineraries

14. Static Routing Simplified deadlock situation . Both vehicles are trying to occupy the same portion/edges of the network, thereby blocking each other. Reservation procedure. Each vehicle reserves the next part of the route. Mutual exclusive reservations guarantee a collision-free execution of computed (static) paths. “ To conclude the evaluation, we remark that the static routing approach is good as long as there are only a few potential deadlocks that have to be avoided since the greedy reservation procedure is of value in this case, but if the reserved areas become larger caused by a more complicated deadlock prevention, it reaches its limits.” ( Klimm et al, 2008)

15. Dynamic Routing “ The main advantage of our model and algorithm over the known online methods is that the time-dependent behaviour of AGVs is fully modeled, such that both conflicts and deadlock situations can be prevented already at the time of route computation . The newly designed model is not only very accurate in the mapping of properties of the actual application but, as we show in our computational experiments, it is also well suited for being used in a real-world production system.” ( Gawrilow et al , 2007) Illustration of the real-time computation on three consecutive arcs with transit time 1. (a) shows the situation before the new request arrives. There is a graph with some blockings (orange) and some time-windows (green) on the time axis (y axis). The task is to compute a quickest path that respects the time-windows. This is illustrated in (b). The chosen path is blocked afterwards (see (c)).