What is the Best Graphic settings?

I have Gtx580 and 8gb memory running on a Intel sandy bridge 2600k on windows7
I mostly play Berlin Version 1.4
Have a 24 inch 1920x1080 full hd monitor


I installed the karosa bus and settings somehow resetted so i dont remember what settings i had

So can anyone recomend what is the best settings of theese options:

In graphics:
Smooth view transition ON or OFF?
Target framerate (i have it set to 128)
Neighbour tales count (i have it set to 13)
Max object visiblity distance (I have it set to 3211)
Min object size (set to max 10.00%)
For reflexion (is set to 20.07%)

Particle system: I sat it to non active

Sun glow effect: Turn off (Should i turn it on?)

Max object: i sat it to 3
Max map complex: I sat it to 2

Stencil buffer effects:
I checked all
Shadows, rain,Human visible in rain reflection

ADVANCED GRAPHICS:Did not touch anything here

Confused how big i should set the catche for max.tex memory for high-res text load (is set to 400mb)
real-time reflection set to 1

AI TRAFFIC:This is what confuses me most what settings should i use here

Road traffic max cars
Scheduled buses
parked cars
Humans max count
Factors passangers at station
Schedule priority (Is set to 3 i guess i get buses on all route if increasing it to 4?)

Please someone help

In graphics:
Smooth view transition ON
Target framerate (i have it set to 128) Leave that there,
Neighbour tales count (i have it set to 13) leave it there or possibly lower it
Max object visiblity distance (I have it set to 3211) thats good
Min object size (set to max 10.00%) yeah
For reflexion (is set to 20.07%) yeah

Particle system: Unless you do not want exhaust smoke leave it off,
Sun glow effect: only time this effects is early day driving

Max object: i sat it to 3 good
Max map complex: I sat it to 2 good

Stencil buffer effects:
I checked all
Shadows, rain,Human visible in rain reflection Meh, i don't like the shadows

ADVANCED GRAPHICS:Did not touch anything here

Confused how big i should set the catche for max.tex memory for high-res text load (is set to 400mb)
real-time reflection set to 1 well look how much it loads, i have it over 200 MB but on a lot of maps it loads less,

AI TRAFFIC:This is what confuses me most what settings should i use here

Road traffic max cars i have 400 and on some maps this is a struggle due to traffic
Scheduled buses 1000
parked cars under 50%
Humans max count i have 400 i think, BUT this does not effect on some maps
Factors passangers at station i have 150 does not effect on some maps
Schedule priority (Is set to 3 i guess i get buses on all route if increasing it to 4?) This confuses me, as i've never understood this

but personally with a map like berlin 1.4 i'd lower everything to as low as i feel safe as that is a really bad map for high FPS settings...
hope this helps

Smallhail741