Paper format. National Examinations, May 2018, 16-Civ-A6 — Highway Design, Construction, and Maintenance. Seven questions of equal value (20 marks each), three hours, closed book, with a ten-page appendix of design charts and tables. Only the first five solutions are marked, but because this set is a study resource all seven questions are solved here.
Unless a question states otherwise the perception–reaction time is taken as $t_{pr}=2.5\ \text{s}$ (the AASHTO design value) under NOTE 2 on page 1, and $g=9.81\ \text{m/s}^{2}$. Stopping and side friction coefficients are read from the “Friction Coefficients to be used in questions” table on appendix page 9; clear-zone widths and their horizontal-curve correction factors come from the two tables on the same page.
Reference texts.
- Garber, N.J. and Hoel, L.A., Traffic and Highway Engineering, 5th ed. — Ch. 3 (driver characteristics and stopping sight distance), Ch. 15 (geometric design of highway facilities), Ch. 20 (design of flexible highway pavements).
- AASHTO, Guide for Design of Pavement Structures, 1993 — Part II Ch. 2 (flexible pavement design); Figures 2.5–2.7, Table 2.4 and Figure 3.1 are reproduced on appendix pages 2–4.
- AASHTO, A Policy on Geometric Design of Highways and Streets (Green Book), 7th ed. — Ch. 3 (sight distance, horizontal and vertical alignment).
- Transportation Association of Canada, Geometric Design Guide for Canadian Roads — Ch. 1.2 (design controls), Ch. 2.1 (sight distance), Ch. 3.2 (horizontal alignment and spiral transitions), Ch. 4 (roadside design and clear zones).
- Asphalt Institute, Thickness Design — Asphalt Pavements for Highways and Streets (MS-1) — Ch. IV–VI; Design Charts A-1 to A-6 and Tables VI-2, VI-3 are reproduced on appendix pages 5–8.
- Huang, Y.H., Pavement Analysis and Design, 2nd ed. — Ch. 2 (stresses and deflections in flexible pavements, Burmister two-layer theory); the $F_{2}$ chart on appendix page 10 is Huang Figure 2.17.
