The zombies would never get TO Madagascar - Madagascar would lock everything down long before that could happen.
Anyways, my plan in a zombie survival situation has a slim to none chance of survival overall. But I still think its a good plan. I will assume that if an epidemic has gotten this bad, I am already infected and my time is likely limited anyways. Either because everyone is being raised when they die, or its a water-born virus, or something to that effect. And since the roads would all probably be blocked and the trains wouldn't be running, I'm not getting out anyways.
I DO have enough wood on hand to fortify my house - the windows and all the doors, barring one room. This is step one.
Step two is getting my ham radio working in the basement, and moving most of the food and rainwater I keep for the plants down there. The water is the most dangerous, since this is in the room with the large windows. Painful though it may be, I might have to skip that - the rest of the windows are far enough off the ground I should be fine until they can be barricaded.
I have an upstairs, with an overhang over the outside. I have a lot of rope. Step three involves dressing up in my motorcycle gear, catching a zombie and dragging it up onto the roof, then handcuffing it and binding it up. Obviously the most dangerous part so far.
The zombie is chained in the basement, the entrances to the basement are sealed, and the experiments begin. Regular reports are made to anyone who cares to listen about what I discover. If the opportunity presents itself, I may capture an additional zombie. I will test just how much they can survive, what sets them off, how they adapt to different stimuli, whether they starve, whether they retain any sense of humanity. In essence, I will attempt to find out what, exactly, we are dealing with.
The rest of the plan depends on what I learn, assuming I live through this, which is unlikely. The least I can do is hope that my information get out and gets spread and helps others, really.