EMME/2常见问题解答5：Questions on EMME/2

  luding any necessary decimal points and minus signs. A coordinate with decimals will be rounded to fit the 7 character field width, if possible. Any coordinate which cannot be displayed using 7 characters, for example a positive integer with more than 7 digits, will always be displayed as *******.

5.0.5: Before leaving a module I tried to look at the batchout file using for example, "~! type batchout", but the file was empty. Why?

The batchout file is closed only when leaving the module. Before leaving the module, the contents of the batchout file may be incomplete because the file buffer is only emptied when the file is closed. Note that the same is true for the reports, plots and errors files. Therefore, always quit a module before trying to use operating system commands for file access via the command escape (~ !).

5.1 Network Modifications

5.1.1: Why do I get errors when trying to read a d211.in file containing node numbers with more than 4 digits?

By default, the number of digits for node numbers is limited to 4. However, it is possible to use node numbers of up to 6 digits. To change the default, use option 7 of Module 1.23. (See also Question 5.0.2).

5.1.2: The length of my links was entered using *. Will the length be updated automatically if I modify the coordinates of a node?

No. You will have to modify the attribute len of the links using that node. This can be done in Module 2.12, in Module 2.11 or in Module 2.41, where the Euclidean distance between the I- and J-node can be computed using the expression: sqrt((xi-xj)^2+(yi-yj)^2)* scale factor (the scale factor is the length of a coordinate unit as specified in Module 1.23). The links can be selected using:

i=node number

or j=node number

5.1.3: How can I modify a link attribute?

There are many possibilities.

• If you have only a few links to

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