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2.2

road driving rules and similarities with AStar logic

the astar logic can be applied to find a

path on a roadmap, but some things /

rules will have to be considered to

prevent an accident or to be annoyed by

cops

for example :

one way roads : a link going from one

node to another node, but only one way

(no link from other node to one node)

dead end roads : a link going from

intersection (node) to a node at dead

end, and another link going from dead

end (node) to a node at intersection

temporary obstructeds road : one or

several links and / or nodes disactivated

traffic lights / stops : a temporarily

disactivated link, or a link of a higher

length than its real length (to take into

account the slowing down of a redlight /

stop)

113

roundabouts / giveways : a link of a

higher length than its real length (to

take into account the slowing down of

the giveways)

traffic jams / frequently crossed roads

(by people) : a link of a higher length

than its real length, at specific times of

the day (to take into account the

slowingdown of the trafficjam / people

crossing the road)

speed limits : a link of a higher or

smaller length depending on the time it

takes to travel this distance when

respecting the speed limit (maybe use a

factor of 1.0 for a speed limit of

100km/h, and others factors for other

speed limits, and multiply the

corresponding factor by the normal

length to calculate the considering speed

length)

PART 3 : how Santa is going to reach each chimney fast

3.1

sky structure and similarities with AStar structure

on a skymap, assuming you can go at

any altitude, there are free ways

everywhere, (the exeption would be high

mountains, and tornados, and storms,

and lightning, and others planes /

helicopters, which could be considered

as obstacles), and there are roofs with

chimenys / air shafts where to drop the

gifts

in this case, the nodes would be the

chimneys / air shafts, the links would be

the free ways between them

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