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It's D&D24. No need for a decimal.

shrug. It is like exit numbers on highways.

For a long time, highway exits were given consecutive numbers based on order. Exit 1 was the exit closest to one end of the highway, and as you drove, you'd hit Exit 2, then 3, then 4, etc.

Now in many places, they have changed the numbering from ordinal position from the end, to number of miles from the end.

Numbering notwithstanding, it is the same slab of asphalt.
 



shrug. It is like exit numbers on highways.

For a long time, highway exits were given consecutive numbers based on order. Exit 1 was the exit closest to one end of the highway, and as you drove, you'd hit Exit 2, then 3, then 4, etc.
Which works fine until a new exit gets built between two existing ones, and all the rest down the road have to be renumbered...meaning anyone using an older map is SOL.
Now in many places, they have changed the numbering from ordinal position from the end, to number of miles from the end.
Which means, unless some serious geographical oddities take place, the number is permanent once assigned; and when it comes to things like this, permanence is a strong feature.
 

Which works fine until a new exit gets built between two existing ones, and all the rest down the road have to be renumbered...meaning anyone using an older map is SOL.

Which means, unless some serious geographical oddities take place, the number is permanent once assigned; and when it comes to things like this, permanence is a strong feature.
Maps are updated electronically...oh I forgot who I was talking to.
 

shrug. It is like exit numbers on highways.

For a long time, highway exits were given consecutive numbers based on order. Exit 1 was the exit closest to one end of the highway, and as you drove, you'd hit Exit 2, then 3, then 4, etc.

Now in many places, they have changed the numbering from ordinal position from the end, to number of miles from the end.

Numbering notwithstanding, it is the same slab of asphalt.
Only in some states, mostly along the East Coast. The majority of states had mile-based exit numbering from the start.
 

Which works fine until a new exit gets built between two existing ones, and all the rest down the road have to be renumbered...meaning anyone using an older map is SOL.

On the other hand, you could fit a 3.5 exit between 3 and 4...
Which means, unless some serious geographical oddities take place, the number is permanent once assigned; and when it comes to things like this, permanence is a strong feature.
 

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