Jakarta is a much quieter place during the Eid celebration that takes place at the end of the fasting month. It is a much quieter place because the vast majority of residents return back to their home villages in the days before Eid and for a week or so after.
Although Jakarta is much quieter, everywhere else suddenly gets a whole lot less quite and sees a significant spike in traffic and the associated problems.
I read in today's Kompas Newspaper (the photo is from Kompas) that the 267 km trip from Jakarta to Cirebon was taking about 19 hours to complete. For my mind that means that you really must want to go home for the holidays. Apparently, on a 'normal' day this trip would take a leisurely 6 hours. This still seems like a long time to travel less than 300 km all the same.