Those are latitude and longitude information which give the location of various cities on the globe. For example on the center foldout of the programme, "53.3333N / 06.2500W" is Dublin, "51.4833N / 00.0000W" is London, "42.3500N / 71.0500W" is Boston, and "40.7166N / 74.0000W" is New York City. Most of the co-ordinates matched up with cities that U2 would play on the Elevation tour.