DELIVERABLE 2.8 - urban track
DELIVERABLE 2.8 - urban track
DELIVERABLE 2.8 - urban track
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
0. EXECUTIVE SUMMARY<br />
0.1. OBJECTIVE OF THE <strong>DELIVERABLE</strong><br />
D0208_STIB_M24.doc<br />
TIP5-CT-2006-031312 Page 4 of 44<br />
URBAN TRACK Issued: August 13, 2008<br />
Quality checked and approved by project co-ordinator André Van Leuven<br />
The networks of tramway operators in the European city centres comprise many short radius curves. The<br />
high lateral forces of the vehicles cause the rails to wear quickly. Build-up welding, the most widely used<br />
method to combat this wear, was developed some 30 years ago. This deliverable thus discusses the<br />
various techniques that are currently available as alternatives for the technique of build-up welding. In<br />
addition, this deliverable also discusses the Viennese Curve, a new curve geometry, aimed a reducing the<br />
wheel rail interaction forces which results in lower wear.<br />
0.2. STRATEGY USED AND/OR A DESCRIPTION OF THE METHODS (TECHNIQUES) USED<br />
WITH THE JUSTIFICATION THEREOF<br />
The various partners in this WP brought their knowledge to the table. Operators from outside the<br />
consortium were contacted to present their method. A meeting with operators from inside and outside<br />
the consortium, as well as representatives from the rail and welding industry were invited to comment<br />
on the various solutions. In addition, the theoretical background and practical experiences with the<br />
Viennese curve were studied. This was achieved through contacts with Dr. Hasslinger, the inventor, and<br />
through a literature study on the subject.<br />
0.3. BACKGROUND INFO AVAILABLE AND THE INNOVATIVE ELEMENTS WHICH WERE<br />
DEVELOPED<br />
Although new elements, such as the use of head hardened rails, were explored, they were not found to be<br />
an alternative to the build-up welding at their present state of development. The Viennese curve is<br />
already applied in Austria in main line and in the Viennese subway. It has not yet been applied to<br />
tramway. It is an alternative to reduce curve wear by specific <strong>track</strong> design.<br />
0.4. PROBLEMS ENCOUNTERED<br />
-<br />
0.5. PARTNERS INVOLVED AND THEIR CONTRIBUTION<br />
TTK in cooperation with STIB prepared the basic document on rail welding. TTK used its contacts with<br />
other operators from inside (RATP, BSAG, VBK) and outside the consortium to get their input and their<br />
presence at the workshop on rail welding. D2S arranged the participation of rail manufacturers. FCP<br />
obtained the information on the Viennese curve from operator Wiener Linien.
Change language