Lesson 1Track geometry fundamentals: alignment, gradients, curvature and their effect on speed and operationsThis part introduces flat and up-down track shapes, including alignment, slopes, and curves. It explains how shapes control speed, comfort, energy use, and safety, and outlines design limits, changes, and upkeep allowances.
Flat alignment and design speedUp-down alignment, grades, and dipsCurvature, tilt, and tilt lackChange curves and comfort rulesShape allowances and measureShape faults and fix actionsLesson 2Rail components: rails, sleepers/ties, fastenings, ballast specifications and maintenance needsThis part details rails, sleepers, fastenings, and ballast, explaining jobs, main features, and fail ways. It links part picks and specs to track strength, ride quality, noise, and upkeep needs over life.
Rail shapes, grades, and wear limitsSleepers and ties: types and spacingFastening setups and clip workBallast sorting and quality checkPart faults and fail waysCheck, renew, and record keepLesson 3Track support types: ballasted track vs slab track — construction, maintenance, and suitable contextsThis part compares ballasted and slab track, focusing on build, build ways, upkeep plans, and life cost. It explains where each support type fits best, thinking speed, wheel load, weather, and ground states.
Ballasted track build partsSlab track setups and kindsBuild ways and allowancesRegular and heavy upkeep needsLife cost and ready effectsContext-based support type pickLesson 4Level crossings: types, risk factors, and mitigation measuresThis part looks at level crossing types, risk parts, and fix steps. It links road and rail traffic ways, user acts, and surround to protection picks, and outlines check ways, design upgrades, and close plans.
Passive vs active crossing typesMain risk parts and accident waysSight distance and road shape issuesProtection setups and warning toolsHuman parts and user actsRisk check and upgrade planningLesson 5Tunnels and cut-and-cover works: when required and cost/benefit considerationsThis part covers tunnels and cut-and-cover works, explaining when they fit vs open cut. It addresses ground risks, build ways, air flow, safety, and cost-gain trade-offs over planning and design steps.
Route pick and tunnel needGround risks and checksBored tunnel build waysCut-and-cover design and stepsTunnel air flow and safety setupsCost-gain and choice compareLesson 6Civil works: bridges (types and load considerations), culverts, retaining walls and drainageThis part covers railway bridges, culverts, holding walls, and drainage. It explains build types, load paths, water design, and lasting so learners link civil work picks to safety, capacity, and life cost.
Bridge types and build load pathsDesign loads and rail traffic hitCulvert size and water workHolding wall types and steady checksTrackside drainage setups and detailsCheck, faults, and fix upLesson 7Track configurations: single vs double track — advantages, costs, and operational implicationsThis part compares single and double track setups, looking at capacity, trust, and cost. It explains passing loops, crossovers, and signal links, and shows how setup picks affect timetabling, strength, and future grow.
Single track capacity and limitsDouble track gains and challengesPassing loops and overtake planCrossovers, turnouts, and bendyWork strength and breaksStep upgrades and future growLesson 8Earthworks, embankments, and track formation stabilityThis part focuses on earthworks and base, covering cuts, fills, and under layer. It explains steady, drainage, and settle control, and shows how check, design, and watch stop shape change and service breaks.
Site check and ground profileCuts: slopes, steps, and supportFill design and packBase layers and top designDrainage of earthworks and baseWatch move and fix
