hospital helipads
All UK hospital helipads should in fact meet ICAO standards and many do not meet the minimum recommended standard.
We should also look at the differences between AA pilots and HEMS pilots and the flight clearances given in emergency situations.
Also there has been and still is many discussions about secondary road transfer of AA/HEMS patients and the use of playing fields away from the main hospital sites.
By the looks of the GE image the helipad has no markings as is required.
JAR-OPS3 and HBN 15-03 are two good guidance documents.