I would use an Excel spreadsheet for this. It is made for this type of graphical analysis.
What experience of spreadsheet design do you have? I ask because while what you show is easy to create, this is not the place to "start from the beginning".
I'm looking for an application or a method of doing this in an existing application such as Access/Excel etc. to do the following ...
I have a list of resource allocations as follows ..
Where the first number is for example a room number, and the times for when this room is occupied.
I would like to graph this data for a 24-hour period, where each horizontal line on the chart is the room, with lines etc. marking when it is occupied.
I've done a lot of searching but haven't been able to find a way of doing this. Any ideas?