Complete guide to traffic accident studies. Accident records, collision diagram, coefficient of restitution, momentum analysis for parked vehicle collision, and key traffic engineering points to remember.
Complete guide to traffic signs and road markings. Regulatory, warning, and informatory signs — shapes, colours, sizes. Road marking types (broken, solid, double). Delineators and milestone colour codes.
Complete traffic signal design guide. Webster method for optimum cycle length C₀=(1.5L+5)/(1-Y), green splitting formula, effective green time, IRC method, pedestrian green time, and solved example.
Complete guide to grade separated intersections and interchange types. Trumpet, Diamond, Cloverleaf, and Directional interchanges — design, cost, conflicts eliminated, and best applications.
Complete guide to rotary intersection (roundabout) design. Entry/exit radii, central island, weaving section, capacity formula Q=280W(1+e/W)(1-P/3)/(1+W/l), weaving ratio, and IRC selection criteria.
Complete guide to traffic intersections. Crossing, merging, diverging conflicts, conflict count for 2-lane roads, intersection control types (passive, semi, active), and at-grade vs grade-separated.
Complete guide to parking study in traffic engineering. Parking statistics (accumulation, turnover, index), on-street kerb patterns (parallel, 45°, 60°, 90°), number formulas, and off-street parking.
Master traffic capacity concepts and Greenshield’s linear model. Basic, possible, practical capacity, q=KV relationship, maximum volume at K_j/2, level of service A–F, and solved examples.
Complete guide to all traffic speed types. Spot speed, time mean speed, space mean speed, running speed, journey speed — formulas, measurement methods, percentile speeds, and V_t vs V_s relation.
Complete guide to traffic volume study. Covers AADT, ADT, 30th Highest Hourly Volume, expansion factors (hourly, daily, monthly), traffic flow maps, and design hourly volume with examples.
