(Continued from IRRD abstract No. 899132). Optimal road width : an engineering approach (Navin,F, Ho,E) [English]; Recommendations relevant to international design standards for improving existing (old) alignments based on speed and safety related research (Eberhard,O, Heger,R) [English]; Reduced height urban tunnels in France (Marec,M) [French]; Road re-engineering (Patillo,JR, Romero,FM) [Spanish]; Side friction demanded and margins of safety on horizontal curves (Morrall,JF, Talarico,RJ) [English]; Single equation for calculating tangents on curves consisting of different radii (Barrera,LJB) [Spanish]; Snowdrift environmental modelling system : an independent implementation of SHRP H-381 (Perchanok,MS, McGillivray,D, Smith,J) [English]; The new 3.1-1C standard "Highway Routes" of the Ministry of Tourism (Cabrera,JAH, Calvo,CA) [Spanish]; The use of added lanes for improving traffic operations in Mexican two-lane roads (Mendoza,A, Mayoral,E) [English]; Towards a more realistic approach to the geometric design of highway vertical curves (Cronje,WB, Meyer,WE) [English]; Use of parametric spline smoothing in highways reconstruction (Bojkov,V, Urmanov,I) [English]; Value analysis and the quality of highway investments in France (Vuillemin,G) [French].
Samenvatting