redesign

[kerb]

I am new to this so my ms paint skills are fairly sloppy, and I don't have a clue on the other stuff using a laptop. so I am more asking than just allowing people to make my circuit below a little more presentable.

[kerb]

the circuit runs anti-clockwise, with 14 corners. the run to turn one is flattish, before a climb with a gradient of 10-15 degrees to T2, which has a rise in the middle of it similar to mount panorama's cutting. between T2-3 is a slight downhill of 2-5 degrees before another climb, 5-10 degrees all the way to T4. a flat run to T5 and yet another climb, 3-8 degrees, continuing around T6 peaking somewhere along the back straight, before descending for the next section. T7-8 I visioned it as a faster version of the Laguna seca corkscrew, steep. T9 will be another downhill run before T10, another steep down hill corner and then T11 will be like the symmons plains hairpin, another fast downhill run through T12 to flatten out on approach to T13, with pit entry on the inside, then the final dab of brake at T14 to blast up the pit straight. the grey road running under the back is the entrance to the paddock. the blue box is for the safety cars and trucks. I hope this would be good for touring cars, and some open wheels.

[ScotsBrutesFan]

OK so without the gradient a scaled version of your circuit at 12m constant width would translate something like this....



Your lack of scale is letting your mind run away with how you imagine a circuit might look. In this case the circuit is only 3.347km long.

You liken to T11 to Symonds Plains hairpin, but there it's a 500m+ approach rather than the 300m in your design.

I know paint isn't the easiest to work with, but try using a thinner line, as if drawing a circuit by pen or pencil. Think about the shape or arc of the corner, with the thinner line it will be easier to show.

Anyway I hope this is what you were looking for

[kerb]

Your lack of scale is letting your mind run away with how you imagine a circuit might look. In this case the circuit is only 3.347km long.

that's a good length for touring cars

You liken to T11 to Symonds Plains hairpin, but there it's a 500m+ approach rather than the 300m in your design.

I just meant the camber of the road and the dip

I know paint isn't the easiest to work with, but try using a thinner line, as if drawing a circuit by pen or pencil. Think about the shape or arc of the corner, with the thinner line it will be easier to show.

goog point, they look a little better on paper, but i don't have access to a scanner

Anyway I hope this is what you were looking for[/QUOTE]

cheers mate, that's what I want.

[kerb]

hey SBF, I just noticed something about the pit lane exit, you've shortened the pit lane and put the exit before T1. T1 is a fastish corner and the pit exit sends them toward the apex and could cause a nasty accident

[ScotsBrutesFan]

Originally Posted by kerb

hey SBF, I just noticed something about the pit lane exit, you've shortened the pit lane and put the exit before T1. T1 is a fastish corner and the pit exit sends them toward the apex and could cause a nasty accident

I can't find the sketchup file to check but usually I try to follow real world measurements about how close pit exits can be to T1. This means that there is usually around a minimum of 100m from the apex to the extreme of the pit lane exit. Looking at it, I may have been a little shorter on this one at around 80-90m. I think when I originally drew it your way, at scale it looks an inordinately long exit.
By shortening up the pitwall section (after the garages), the pit exit would move another 10m easily further away from the apex.

[kerb]

think of it as the Daytona road course exit. it keeps the car out of the way and gives time to eliminate speed difference.

[kerb]

ok next track, living in Australia, I am noticing something (it may be different overseas), outdoor hire kart tracks are starting to disappear. living in Canberra, we have none, there is a club circuit, but hire karts are all indoors. I have posted this on another thread asking for ideas, but got no feedback, so without further ado, I present a nameless circuit that I published in a more boring than usual English class.

[kerb]

so moving clockwise, the long track is in the range of 1.5 to 2 kilometres and the short just 200 to 500 metres shorter. the two pit lanes are hire in grey and comp in black. the blue square is the 360 degree viewing platform(for photos, some parents are like that), red square being clubhouse/fast food outlet, black rectangle is the car park/comp paddock. and the long track T5, sorry, couldn't help myself. hire karters have a choice of layout, long or short, but comps will be the long course.

[kerb]

ok, no responses? how disappointing

[kerb]

this is the third circuit on my thread, no sand or grass yet

[kerb]

the track moves anti clockwise with 13 turns and between 3 and 4 km in length. the black line is the main track, with the blue short track cutting the course to 2-3km. the grey line is the pit lane, with a long run of exit to eliminate speed difference

[ScotsBrutesFan]

Rule of thumb Number 1 (though there are exceptions in the real world) put the pits on the side of the track that becomes the inside of T1. the pit exit is aimed at the racing line as it turns into the apex.

From your drawing T1 would look something like below, with the red line showing the racing line.



Even moving the pit exit further to the right onto the curve would put cars exiting the pits in danger of a another car having a braking incident into T1

So using SBF's Rule of thumb #1 putting the pit on the inside of T1 would result in this



Here you can see the racing line, and overtaking line and the pit exit safely on the inside.

[kerb]

I was thinking of it like Oran Park, and the exit after the limiter should be long enough to limit speed difference

what about around the corner on the inside before re-joining the track?

ironically I do believe I made a similar point when you edited my first track

[ScotsBrutesFan]

It's not about speed difference, it's about being able to rejoin safely where the driver coming down the straight isn't caught out by some one blindly cutting into the racing line. Or rejoining after the turn in point to a corner and being caught between a car having its own accident and the gravel trap.

If the pit straight isn't long enough for the pit exit to rejoin 90 or more metres before the inside of T1, there is nothing wrong with rejoining after the T1 apex if it's safe to do so. The Silverstone pits both old and new exit after T1.