+G++   TMP++SBSF          ++B++    +++++++P++     ++P+++++   +++++M+GB++          E++++  +++MFP+S++++++  ++ H+++++ ++F+++++P++++++  ++P+     +++PG  ++++  D  +++FS

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)