And all that information is usefull to the school bus driver in what way?
I notice that taxi drives who have a GPS unit in their car have a tendency to always glance to the unit and reference their location, even when traveling on a straight highway. It ends up being a distraction and a crutch that the driver seems to not be able to work without. Most bus routes do not change during the school year or even from year to year, the weather can be seen by looking out the window ( one might want to know the weather forcast before getting into the bus, and with that, related school closures, rather than once in the bus ), traffic reports are at most times a rehash from one day to the next, regardless of the traffic being light or heavy, accidents and lane closures might be beneficial only if the driver can take alternative route but there is a time delay of getting the information out, construction problems are usually pre-warned the day or weeks ahead, and displaying a record of crimes on a GPS unit display commited at the upcoming corner might be just too much information for the driver to process without losing concentration of keeping the vehicle stable on the road and able to deliver its contents to their destination without incident.
You did ask if it was a good idea to pursue? To present your idea to potential buyers and convince them it is beneficial in their line of work, you should have some sort of convincing information to counteract the arguments such as presented above, and maybe more. I would presume that you think it is a good idea, otherwise you wouldn't have come up with it, but it could be you really do not know for sure since the benefits are somewhat elusive and not applicable to each and every day.
So bucker down and give it some more hard thought of how the features of the unit would serve a need for the bus driver and company, if not today nor the next but perhaps next Tuesday and the day after that, and they will be happy they did have it, and the money spent was well served. Some features may be added, some withdrawn and others tweaked as you progress down the design phase.
I have no real opinion on its viability in the marketplace. Maybe they need it and just do not know that yet!