M+ +TM++PM+  +++GBEF+   + P+++   S+ ++  M ++     PM+  +M                     + +         B++++++++ +       P  + + +  + +          +++ +++ +++M

D - Depot. (place to repair ship, refuel ship, and buy extra fuel)
E - Exchange (place to buy goods)
B - Bank
F - Bar (food, beer, buy/sell)
S - System Parts
G - Guns Shields and Rapidheals
H - Hotel
M - Public Teleport (within city)
T - Tube Station (city to city)
P - Secure Parking lot
+ - Building (does nothing)