RoadSense guides
Practical walkthroughs of the South African TMH and TRH manuals and SAPEM: how to use each one, how they connect, and how to carry one piece of work from the first survey to a decision.
Start with TMH 13 explained: seven parts of automated road condition assessmentEvery guide names the manuals it draws on, defines each term at first use and cites the edition it relies on. Choose the kind of help you need.
22 guides
Manual explainer
TMH 13, the South African road manual, sets out automated road condition assessment in seven parts, A to G. See which part answers which question.
TMH 13TMH 22TMH 18
10 min read · 1:28 filmHow-to guide
Follow 13 steps to do a TMH 9 visual assessment on a flexible road pavement, from segments and assessors to ratings, checks, photographs and hand-over.
TMH 9TMH 22TMH 18TRH 12
11 min read · 1:21 filmEnd-to-end journey
Follow how roughness survey data gets into RAMS: 10 m profiler readings become a 100 m register record across South African manuals TMH 13, TMH 18 and TMH 22.
TMH 22 Part DTMH 13 Part ATMH 13 Part BTMH 13 Part CTMH 18TMH 22 Part B
10 min read · 1:24 filmConcept map
Find which TMH manual you need: a map of the South African TMH, TRH and SAPEM road manuals by job, with the edition to open first and the next manual.
TMH 9TMH 13TMH 18TMH 22TRH 4TRH 12TRH 26SAPEM
10 min read · 1:37 filmHow-to guide
Prepare a South African TMH 18 CID file set: fix the version first, then check names, empty fields, kilometre window, units and lane codes before sending.
TMH 18TMH 13TMH 22
10 min read · 1:28 filmEnd-to-end journey
See what happens to South African TMH 9 ratings: a TMH 18 file, a named condition index, a panel inspection and a TRH 12 project investigation.
TMH 9TMH 18TRH 22TMH 22TRH 12
11 min read · 1:28 filmHow-to guide
Specify a road condition survey in ten steps with TMH 13 and TMH 22: fix road class, device class, interval, kilometre datum, validation and TMH 18 format.
TMH 22 Part DTMH 13 Part ATMH 13 Parts B-GTRH 26TMH 18COTO Specifications
11 min read · 1:30 filmManual explainer
TMH 18 is the South African road manual for data exchange files. See its file types and extensions and how Draft Version 4 and Committee Draft 5.0 differ.
TMH 18 (V4)TMH 18 (CD 5.0)TMH 22TMH 13TMH 9
10 min read · 1:36 filmHow-to guide
Rate gravel road condition in South Africa with TMH 9 Part E: the items to rate, degree and extent, a synthetic example and the records to keep per segment.
TMH 9TMH 22TRH 20TMH 18
10 min read · 1:25 filmComparison
Compare IRI vs rut depth vs texture depth (MPD): three records from one laser profiler pass, defined in South African road manual TMH 13, filed in TMH 18.
TMH 13 Part CTMH 13 Part DTMH 13 Part ETMH 18TMH 22 Part D
10 min read · 1:26 filmComparison
Compare a TMH 9 assessment segment, a TMH 22 reporting interval and a TRH 12 uniform section on one road pavement, and align the three on one datum.
TMH 9TMH 22TMH 13TMH 18TRH 12SAPEM Ch. 10SAPEM Ch. 14
10 min read · 1:22 filmHow-to guide
Calculate a visual condition index (VCI) for a road pavement from South African TMH 9 ratings: verify, name the variant, weight, normalise, record the method.
TMH 9TMH 22TRH 22TMH 18ReCAP guideline
10 min read · 1:28 filmEnd-to-end journey
Collect RRAMS road condition data in nine stages, from district register to first asset management plan, with the manual, edition and evidence to keep at each.
TRH 26TMH 22TMH 9TMH 13TMH 18GRAP 17
10 min read · 1:28 filmManual explainer
TMH 22 is the South African road asset management manual. See what Parts A to J set out and what it leaves to TMH 9, TMH 13, TMH 18, TMH 19 and the authority.
TMH 22TMH 9TMH 13TMH 18TMH 19TRH 26GRAP 17
10 min read · 1:30 filmHow-to guide
Check a roughness survey on a South African TMH 13 validation section: calibration versus validation, eleven checks, a worked example and the file to keep.
TMH 13 Part CTMH 13 Part ATMH 13 Part BTMH 22 Part DCOTO Specs Ch. 20TMH 18
11 min read · 1:27 filmManual explainer
SAPEM, the South African Pavement Engineering Manual, is a guideline, not a specification. Find its 14 chapters by work stage and the manuals it points to.
SAPEM Ch. 1-14TRH 4TRH 12TMH 9TMH 13COTO SpecsTMH 22
10 min read · 1:38 filmEnd-to-end journey
Trace nine pavement management system steps in South Africa, from road register to monitoring, naming the manual, edition and hand-off failure at each.
TMH 22TMH 9TMH 13TMH 18TRH 12TRH 4SAPEMCOTO Specs
10 min read · 1:33 filmConcept map
Map road condition survey quality control in South Africa: how TMH 9 proves visual ratings, how TMH 13 proves instrument readings, and where they meet.
TMH 9 Part ATMH 13 Part ATMH 13 Part CTMH 13 Part GTMH 22TRH 22COTO Specs Ch. 20TMH 18
10 min read · 1:31 filmConcept map
Find which lane to survey for road condition in South Africa: TMH 9 favours the worst lane, TMH 22 the slow lane, and TMH 18 labels lane codes optional.
TMH 9 Part ATMH 13TMH 18TMH 22 Part D
10 min read · 1:15 filmConcept map
Follow FWD deflection data from TMH 13 to TMH 18 into a South African pavement investigation, and see where its unit label and .fwd extension change meaning.
TMH 13TMH 18TMH 22TRH 12SAPEM
10 min read · 1:32 filmEnd-to-end journey
Follow seven stages to design a pavement using SAPEM, step by step: the four inputs to Chapter 10, the choice of methods and what the report records.
SAPEM Ch. 6SAPEM Ch. 9SAPEM Ch. 10TRH 16TRH 4TRH 26
10 min read · 1:34 filmComparison
Compare TRH 4 vs SAPEM Chapter 10 in South African pavement design: what each decides, what each leaves open and where TRH 12 takes over.
TRH 4SAPEM Ch. 10TRH 12SAPEM Ch. 14
10 min read · 1:30 filmNo matching guides. Try a broader term or clear the filters.