Constructing Travel Charts / load matrix

Hi, this is my first visit here.

I'm not sure if this is an area anybody here knows about as it's certainly brand new to me, but I'm having some trouble getting to grips with the concept of constructing travel charts (also known as load matrix I believe). This is to do with business layout planning. Once I know how I can go about it I can probably do it, I'm not here to let you do my work :) I'm in uni. I need to construct one based on some information I have but pretty clueless how to go about it.

I know what travel charts look like and have examples of finished ones ("to" on one side, "from" on the other), but I just don't know how the figures are calculated. Hoping somebody here has some knowledge of this area.

Task is to make travel chart providing the number of units per month moving between d epartments

This is the data I have - 10 major products and 6 departments :

http://img260.imageshack.us/img260/9016/taskds6.jpg

Have "definition" of travel chart - a travel chart lists the number of moves from one work centre to another over same time period

Any help at all with this is appreciated.

Reply to help (travel charts, layout planning)

Quote:

Originally Posted by

**JakeD** From your description, I'd guess the travel chart looks like this. "To" departments are along the side; "From" departments are across the top. To fill out the chart, the number of units going from department X to department Y is added up from all the processing sequences with XY in them. For example, the number of units going from B to D is 2000 for product 7, 2500 for product 8 and 1000 for product 10 for a total of 5500. For A to C, it is just 1500 from product 5.

$\displaystyle \begin{tabular}{c|cccccc}

& A & B & C & D & E & F\\ \hline

A & & & & & \\

B & & & & & \\

C & 1500 & & & & \\

D & & 5500 & & & \\

E & & & & & \\

F & & & & & \\

\end{tabular}$

Thank you taking the time to give me some advice, it helped. Using the advice I filled in the the travel chart (although with "From" down the side, and "To "at the top as it shows in some examples I have in a text book (but it's explanation is very complicated to me). I'm not entirely sure if the method of calculation you showed me is correct for the task, but I'm hoping it is. It's something to go on.

Noticed department A only ever is used at the beginning (and only is followed by B or C), and F only ever used at the end.

Does this seem right? This was my end result for the travel chart:

http://img254.imageshack.us/img254/10/travchart2tf8.jpg

If you see, this is leading to developing a layout design by systematic approach, for the made up business and it's departments. Not too sure where to go from here (this was all new to me), but I believe I need a relationship chart, but again not sure how to construct it. These show relationships between the various work-centres within a factory for example.

I know they take this sort of shape, found the following example on the net, but probably more complicated than I need for my data..

http://www.qmisolutions.com.au/image...ship-chart.jpg

In the end on one of these charts it has letters A, E, I, O, U, X in the spaces

A - For closeness Absolutely necessary, to X - Undesirable. I don't suppose you know about these, do you?

Thanks again