arbiter.net question

[bob jenkins]

Originally Posted by grunewar

I concur with Bob that Arbiter is often close, but not totally accurate. I give my own spreadsheet/numbers to the "tax man" based on my odometer verification and previous year's known distances to the locations.

It's also often not close. I had one assignment that showed the distance at about 100, when the actual distance was 140+

[Welpe]

Originally Posted by bob jenkins

It's also often not close. I had one assignment that showed the distance at about 100, when the actual distance was 140+

I wonder if the Arbiter figures the distance as the crow flies, as opposed to actually driving the two distances. At any rate, I don't pay any attention to the mileage number and use my own records for mileage purposes.

[Mark Padgett]

Originally Posted by Welpe

I wonder if the Arbiter figures the distance as the crow flies, as opposed to actually driving the two distances. At any rate, I don't pay any attention to the mileage number and use my own records for mileage purposes.

What about you guys who live in metric countries? Are your numbers figured out by this program in kilometers?

Not a joke, really just curious.

[Ref_in_Alberta]

Originally Posted by Mark Padgett

What about you guys who live in metric countries? Are your numbers figured out by this program in kilometers?

Not a joke, really just curious.

Arbiter shows our distances in miles, however we don't got paid mileage so it really doesn't matter. We get a flat travel fee for games worked outside of the city limits.

[Back In The Saddle]

There is also another, top secret, zip code field, which only the assigner can access, that is used when calculating your distance to game sites for auto-assigning. Somehow mine got set to another state (perhaps I ticked off my assigner? ), and when I got assigned games, I was due some very hefty mileage checks.

I have also been told that the algorithm for figuring mileage uses a fixed point within the zip code. In my case, that fixed point is many miles farther. I normally mapquest and google maps my journey, and pass that number along to the school. But some schools just use the number from the arbiter, and my check is a little bigger than normal. Can't help 'em out if they don't want the help, I guess.

[Welpe]

Originally Posted by Back In The Saddle

There is also another, top secret, zip code field, which only the assigner can access, that is used when calculating your distance to game sites for auto-assigning. Somehow mine got set to another state (perhaps I ticked off my assigner? ), and when I got assigned games, I was due some very hefty mileage checks.

BITS, our assigner has us set our ZIP code and travel limits in the "Travel Limits" screen. This is found under "Blocks". This is nice as I can set one ZIP code for M-F and another for the weekends.

[Back In The Saddle]

Originally Posted by Welpe

BITS, our assigner has us set our ZIP code and travel limits in the "Travel Limits" screen. This is found under "Blocks". This is nice as I can set one ZIP code for M-F and another for the weekends.

Interesting. I have four different arbiter accounts, and none of them allow me to access "travel limits". Different sports within the same organization (my state activities association) enable different screens within the blocks area.

Ironically, the one sport where I have a definite list of partners I would block, won't allow blocking partners, but allows blocking schools. The one sport where I would really like to entirely block a certain school, won't allow blocking more than 3 individual teams (varsity/jv/soph/frosh and boys/girls are all listed separately).

[Camron Rust]

Originally Posted by Back In The Saddle

There is also another, top secret, zip code field, which only the assigner can access, that is used when calculating your distance to game sites for auto-assigning. Somehow mine got set to another state (perhaps I ticked off my assigner? ), and when I got assigned games, I was due some very hefty mileage checks.

I have also been told that the algorithm for figuring mileage uses a fixed point within the zip code. In my case, that fixed point is many miles farther. I normally mapquest and google maps my journey, and pass that number along to the school. But some schools just use the number from the arbiter, and my check is a little bigger than normal. Can't help 'em out if they don't want the help, I guess.

While I can't tell you how Arbiter does it for sure, I can tell you how I do it on RefTown....

I do it from the geographic center of the zipcode of the official to the geographic center of the zipcode of the school. Databases are available that give precise coordinates (latitude and longitude) of this geographic center. With this data, you can calculate the distance between two coordinates.

The ramifications of this sort of approximation is that the driving distance can be off by +/- half the size of each zipcode.....plus the "as-the-crow-flies" approximation error. (I've been investigation even better methods of approximating distance that eliminates 1/2 zipcode errors). The distance from an official to a school in the same zipcode will come up as 0 miles. The distance between a school and an official who just live on opposite sides of the zipcode boundaries could be 10's of miles.

On RefTown, however, I don't do it "as-the-crow-flies". I have another method that I created that more closely approximates real driving distances....still an approximation but typically with a smaller margin of error.

To calculate precise mileages for all the possible addresses and routes is a pretty complicated and compute intensive task...something you don't really want when you load your page with 40-50 games.

[Back In The Saddle]

Sounds like a tough problem to solve, Camron. I just looked up my zip code, and it covers ...oh probably 2-3% of the state. My town is near the edge. Utah is kind of unusual in that the majority of the population live within a fairly narrow corridor running north/south through the center of the state. So the state is framed by huge zip code areas. And since I normally only get mileage when traveling to rural schools, that would seem to make the worst case scenario, the norm.

BTW, would it make more sense to calculate mileage once for each assignment and cache it, rather than calc it on the fly?

[Raymond]

Originally Posted by Welpe

I wonder if the Arbiter figures the distance as the crow flies, as opposed to actually driving the two distances.

You took the words out of my mouth. In my g/f's Garmin GPS when you initially punch up an address or point of interest the mileage reflects the distance in a straight line. But once you set it as a destination the mileage is recalculated to reflect the driving directions.

[grunewar]

Originally Posted by bob jenkins

It's also often not close. I had one assignment that showed the distance at about 100, when the actual distance was 140+

Yikes, 40 miles IS a bit much!

[chartrusepengui]

Don't any of you get paid mileage from the school/conference?

[bob jenkins]

Originally Posted by chartrusepengui

Don't any of you get paid mileage from the school/conference?

To summarize previous discussions:

Some areas do, some areas don't.

Of those that do, some pay one driver, some pay all. Some pay one way, some pay round trip. Some pay for all mileage, some for any mileage in excess of some number (e.g., mileage paid for miles above 25). Some pay one rate, some pay another. Some areas even pay at a third rate. ...

[inigo montoya]

I believe Arbiter just calculates distance as-the-crow-flies from the center of your listed address to the center of the zip code of the destination, but I could be wrong on that.

We are paid a set amount, based on the distance from our association's business address to the site, but it's nowhere near what the IRS allows us to deduct, so we can deduct the difference as far as I'm told.

[Texref]

[QUOTE=inigo montoya;537635]I believe Arbiter just calculates distance as-the-crow-flies from the center of your listed address to the center of the zip code of the destination, but I could be wrong on that.[\QUOTE]

That is what I've been told as well. I also think if you are able to put mileage restraints in, that it comes from the zip code for that day instead of your home zip, if they are different.