Improving Global Quality of Life
Improving Global Quality of Life
Improving Global Quality of Life
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While items and directions may vary in different countries over time, this illustrates the importance <strong>of</strong><br />
obtaining adequate funding and resources to close short-term gaps and meet long-term strategic goals.<br />
A task force <strong>of</strong> pr<strong>of</strong>essional practitioners at a national level will have to ensure that cost estimates for the<br />
needs are reasonable and that the available resources will meet their specific programme needs including<br />
programmes for welded bridges identified in areas <strong>of</strong> research, design, construction, maintenance and<br />
operation. These needs should be considered by those who are in a position to fund and support the<br />
programme.<br />
In summary while engineering details for designing, constructing and maintaining bridges are important, the<br />
significance <strong>of</strong> integrated bridge technology in meeting short-term goals and long-term needs for transporting<br />
people and goods safely, economically and efficiently cannot be overestimated. It behoves one to provide<br />
adequate resources in meeting programme needs <strong>of</strong> welding pr<strong>of</strong>essionals and welding organisations<br />
for deployment <strong>of</strong> available researched information, technology transfer to improve transportation and<br />
economy so as to achieve prosperity and security for people around the world.<br />
9.10.3 Hot topics<br />
Improved bridge design including review and approval, and inspection techniques to reduce fatigue<br />
cracking.<br />
Training, qualification and certification <strong>of</strong> appropriate personnel to achieve this.<br />
Research and development <strong>of</strong> materials and corrosion resistance.<br />
Improved global dissemination <strong>of</strong> information from international and national organisations to<br />
industry for improved quality <strong>of</strong> welded products, monitoring <strong>of</strong> service life <strong>of</strong> welded components<br />
and training, qualification and certification <strong>of</strong> welding personnel.<br />
Uptake <strong>of</strong> existing information, technologies, products and processes by developing nations e.g.<br />
global positioning systems, accelerated construction, prefabricated bridge elements and systems.<br />
9.11 Rail track sector<br />
The European Rail Research Advisory Council (ERRAC) was set up in 2001 with the ambitious goal <strong>of</strong> creating<br />
a single European body with both the competence and capability to help revitalise the European rail sector<br />
and make it more competitive, by fostering increased innovation and guiding research efforts at European<br />
level. The strategic research agenda (SRA), RAIL 21, published by ERRAC has defined major guidelines for<br />
the challenges and targets to achieve excellence in operations and increased efficiency in railway systems.<br />
Within strategic research priorities <strong>of</strong> the RAIL 21, innovative materials and production methods, as well<br />
as development <strong>of</strong> light-weight, safe and higher performance tracks and trains directly correspond to the<br />
possibilities and innovation <strong>of</strong> welding and joining sector.<br />
9.11.1 Rail welding<br />
Continuously-welded rail (CWR) has largely replaced jointed (fish-plated and bolted) track as the accepted<br />
method <strong>of</strong> rail joining for construction <strong>of</strong> new railway track, and in maintenance activities such as<br />
re-railing, replacement <strong>of</strong> rail defects, etc. Welding processes in most common use are flashbutt welding and<br />
aluminothermic (thermite) welding. Alternative welding processes such as gas pressure welding and electric<br />
arc welding are also used, but to a lesser extent.<br />
Selection <strong>of</strong> the optimum rail welding process for any particular application is dependent on the rail grade<br />
and section, location at which the welding is to be carried out, number <strong>of</strong> welds involved, etc. Other factors<br />
134 <strong>Improving</strong> <strong>Global</strong> <strong>Quality</strong> <strong>of</strong> <strong>Life</strong> Through Optimum Use and Innovation <strong>of</strong> Welding and Joining Technologies