Signs, Markings and LGV Road Restrictions
Traffic signs, lane and weight restrictions, height and width limits, speed signs, low bridges, environmental zones, roadworks and authorised directions.
How to prepare for DVSA LGV Part 1
Apply large-vehicle thinking to every rule: know the vehicle and load, scan farther ahead, protect blind areas and stopping space, and keep legal records and CPC obligations in the correct test stage.
Core concepts
Concept 1
Shape, colour, symbol, text and supplementary plates communicate warnings, prohibitions, mandatory actions and route information.
Exam cue: Compare every signed restriction with the actual vehicle and combination.
Concept 2
LGV dimensions and weights make height, width, axle, gross-weight and lane restrictions especially important.
Exam cue: Plan an alternative before reaching a restricted route.
Concept 3
Temporary signs and authorised directions control the current road layout.
Exam cue: Use advance signs early enough to avoid unsafe last-minute diversion.
Risk pitfalls and guardrails
Reading a weight sign as payload rather than the controlled vehicle or combination limit.
Guardrail: Do not apply car-scale assumptions to an LGV; account for mass, dimensions, blind areas, load and the applicable compliance regime.
Following sat nav into a signed restriction.
Guardrail: Do not apply car-scale assumptions to an LGV; account for mass, dimensions, blind areas, load and the applicable compliance regime.
Ignoring temporary traffic management because permanent markings remain.
Guardrail: Do not apply car-scale assumptions to an LGV; account for mass, dimensions, blind areas, load and the applicable compliance regime.
Memory anchors
Actual Vehicle vs Sign
Compare current height, width, weight and class with the restriction.
Advance Means Act
Use advance warning to change route before options disappear.
Sat Nav Cannot Authorise
Signs and legal restrictions override route guidance.
Low Bridge Know Height
Display and use the travelling height where required.
Temporary Controls Now
Follow authorised temporary signs and directions.
Lane Rule by Vehicle
Check whether an LGV restriction applies to the vehicle and road.
Checkpoint rule
Do the check-up only after you can summarize each concept in one sentence and identify one dangerous pitfall from memory.
Knowledge Check (after reading)
Short check-up to confirm understanding of this module.
Check-up Questions
What does a circular road sign with a red border normally indicate?
What does a blue circular sign normally require?
Answer all questions to submit.
Next step personalized recommendations
Continue learning
Move forward only after this module is stable.
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