It would be great if the NOTAM system could allow you to filter relevant NOTAMs based on route, not everything for Australia.
That's what SPFIB was marketed as being able to do. I tried it a few times and gave up.
I think the format of the information is a consequence of ICAO parameters. As Lazyload's links shows, it's a world wide issue.
But the inefficiencies of the ICAO processes shouldn't prevent a plain English and specific route and operation type option being available. Let's face it: Airservices couldn't be bothered spending the time and money to make the system more use-friendly and, therefore, safer.
Meanwhile, YNAR has been YSSY-ised:
AERODROME OBSTACLES AMD
TKOF RWY23:
OBST TREE 554FT AMSL 1590M FM SOT 110M STH C/L INFRINGES TNS SFC
OBST TREE 538FT AMSL 1520M FM SOT 67M STH C/L INFRINGES TKOF SFC
OBST TREE 533FT AMSL 1558M FM SOT 49M STH C/L INFRINGES TKOF SFC
OBST TREE 536FT AMSL 1193M FM SOT 98M NTH C/L INFRINGES TNS SFC
OBST TREE 495FT AMSL 1249M FM SOT 36M NTH C/L INFRINGES TKOF SFC
OBST TREE 529FT AMSL 1450M FM SOT 33M STH C/L INFRINGES TKOF SFC
OBST TREE 544FT AMSL 1287M FM SOT 126M NTH C/L INFRINGES TNS SFC
TKOF RWY14:
OBST TREE 545FT AMSL 2550M FM SOT 42M STH C/L INFRINGES TKOF SFC
OBST TREE 552FT AMSL 2611M FM SOT 144M STH C/L INFRINGES TKOF SFC
OBST TREE 547FT AMSL 2660M FM SOT 22M NTH C/L INFRINGES TKOF SFC
OBST TREE 538FT AMSL 2352M FM SOT 66M NTH C/L INFRINGES TKOF SFC
OBST TREE 502FT AMSL 1996M FM SOT 69M NTH C/L INFRINGES TKOF SFC
OBST TREE 503FT AMSL 1804M FM SOT 131M NTH C/L INFRINGES TNS SFC
OBST TREE 529FT AMSL 2295M FM SOT 116M STH C/L INFRINGES TKOF SFC
OBST TREE 542FT AMSL 2355M FM SOT 37M STH C/L INFRINGES TKOF SFC
OBST TREE 509FT AMSL 2111M FM SOT 123M STH C/L INFRINGES TKOF SFC
OBST TREE 536FT AMSL 2345M FM SOT 72M STH C/L INFRINGES TKOF SFC
OBST ANEMOMETER 503FT AMSL 1516M FM SOT 129M STH C/L INFRINGES TNS
OBST FENCE 472FT AMSL 1841M FM SOT 92M NTH C/L INFRINGES TKOF SFC
AMD EN ROUTE SUPPLEMENT AUSTRALIA (ERSA)
FROM 10 220310 TO PERM
ERSA shows the AD ARP as 474' AMSL.