brake calculation [tech.] die Bremsberechnung
http://dict.leo.org/ende?lp=ende&lang=de&searchLoc=0&cmpType...

The braking calculation is essential for determination of the braking distance taking into consideration all contributions of the individual cars and waggons. The German key words are "Bremsgewicht, Bremsmasse" (braked weight) and "Bremshundertstel" (braked weight percentage, effictive braking power).

In braking calculation, the disc braking, electronic pneumatic braking, and additional braking could be calculated. Also the locomotive handle and train brake handle could be controlled independently;
http://cars.rails.com.cn/2j/cg/mj.asp?num=233

- Check Braking Calculation for WCMLRM LSE Project
http://www.people4business.com/seller-299772.htm

- Correct braking calculation to assure the correct braking response and braking distance of
the ROLA train
http://www.oekombi.at/?lan=2&frame_content=http://www.oekomb...

The design of the signalling system for the safe braking calculation is very much dependant on brake assurance given by the train system such as the full-service brake rate.
http://www.lta.gov.sg/projects/doc/Safety_News_Issue7_March2...

Use of the automatic system and its configuration for the 1520 mm track gauge shall give due consideration to the bogie design used and the type of transition from one gauge to the other.
Brake performance shall be calculated on the basis of the "Standard Braking Calculation for Freight and Refrigerator Wagons".
http://www.otif.org/fileadmin/user_upload/otif_verlinkte_fil...

Brake performance shall be calculated on the basis of the “Standard Braking Calculation for Freight and Refrigerator Wagons”. Here, the theoretical coefficient calculated for the wagon brake block force when the brake system is switched on to the 1 520 mm gauge shall satisfy the following values:
— for K (composite) brake blocks: at least 0,14 up to a maximum of 0,31 for a fully-laden wagon and at least 0,22 up to a maximum of 0,37 for an empty wagon;
— for GG (cast-iron) brake blocks: at least 0,36 up to a maximum of 0,70 for a fully-laden wagon and at least 0,62 up to a maximum of 0,81 for an empty wagon.
The different wagon braking forces specified in the standards for operation on 1 435 mm and 1 520 mm track gauges can be accommodated by an appropriate adjustment to the brake rigging or the brake cylinder.
http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2...

4.1.6 Values of the braking calculation
The relevant input parameters for calculating of the braking distance are shown in Tab. 10.

Train Length [m]
Speed [km/h]
Brake percentage
brake position
Train
www.uic.org/download.php/publication/510E.pdf

Note 1: UIC is the standard in railways.
Note 2: I worked 8 years within a german railway company and planned 2 years infrastructures for railway companies in Europe, in addition.