... REGRESSION LOW MATHEMATICS MODELLING MATHEMATICAL DATA TENDERS FINAL MECHANISMS INCREASES RELATIONSHIPS NEW JERSEY UK USA UNITED STATES Predicted cost escalations in competitively bid highway projects Proc. Instn Civ. Engrs Transp., 1999, 135, Nov., 195±199 T. P. Williams, BSc, MSc...

...R A DOUGLAS; TRL Unbound roads traf cked by heavily loaded tyres with low in ation pressure R. A. Douglas, BASc(CE), PhD, PEng, MCGS, MCSCE Proc. Instn Civ. Engrs, Transp., 1997, 123, Aug., 163 173 Paper 11377 Written discussion closes 31 December 1997 s The paper describes tests undertaken...

... that the deflection is caused by a verti- mental factors. A new low profilerail cal wheel load only. Although the variation in system (LR55) was foundto be very wheel/rail forces at the poinoft contact will capable of withstanding loadinugp to interact in complex ways, this will be incorpor- main line railway...

...L LESLEY; H AL NAGEIM; LR55 NEWLOW HEIGHT RAILSYSTEM to the height of the rail section,low profile track support systems havebeen developed. These include the Budapest system and the LR55 s y ~ t e m ,w~he. r~e the standard sectionof the high profile rail system hasbeen replaced by a new rail...

...D. F. Cannon, MIMechE This Technical Note outlines some of the work undertaken by British Rail Research (BRR) on the viability of joining together existing bolted rail to create continuously welded rail. © Thomas Telford and ICE 1993 British Rail Research Permanent Way Railways Low...

..., at a rate typical of the normal welding cycle time, without end cropping. In such cases it was difficult to see how cropping could turn out to be more cost-effective. © Thomas Telford and ICE 1993 INFORMAL DISCUSSION Low-cost conversionof bolted track to continuously weldedrail Proc. Instn Civ...