Cambodia (5 provinces): Tertiary Roads Improvement Programme (TRIP) – Phases I, II, and III

Rehabilitation / construction of rural roads by labour-based methods in 5 provinces of eastern Cambodia.

The overall objective of TRIP is to connect small sections of roads with larger networks linking villages, communes and district centres together, and providing good access to local markets, health centres, schools, and public services.

The works focused on roads proposed by local villagers.

By end of TRIP III, it is expected a total of 542 road projects will be completed in Kampong Cham, Kampong Chhnang, Kampong Speu, Kampong Thom and Prey Veng Provinces - providing 1,185 km of earthfill tertiary roads (nominally 4 m wide) – capped with lateritic gravel.

In addition, it is expected around 2,210 road drainage structures will have been built (mostly single/multiple pipe culverts and concrete box culverts), but also some short-span bridges, and spillways.

Further works included the grassing of roadside verges, tree planting along road embankments, road protection measures such as erection of traffic limiting posts and gates, and a number of road safety measures.

Works were mostly undertaken within target areas designated by the United Nations’ World Food Programme (WFP), who provided 16,760 MT of food to 800,000 beneficiaries for food for work for labour involved in construction.

A small number of roads (7 % = 82 km) were constructed by Force Account (cash for work)/ Private Sector.

It is estimated that 5.26 Mio workdays of local employment will have been generated.

The Programme adopted the “lengthsperson system” for routine maintenance of all roads - each village worker, contracted through the Provincial Departments of Rural Development, being responsible for maintaining a road section, about 1.3 km long. 

By end of November 2004, 743 lengthsperson are maintaining 908 km of TRIP/ FRP roads.

In 2003, a Pilot Scheme to transfer maintenance responsibility from the lengthspersons to Road Maintenance Working Groups (RMWG’s), established by selected de-centralised Commune Councils, was initiated.

TRIP provides financial / technical support to the RMWG’s who benefit from valuable experience in maintenance management and implementation.

The scheme was extended in 2004, and 185 km of roads are now being maintained by RMWGs in 8 Communes.

DORSCH CONSULT employed as Civil Works Consultant Contractor (CWCC), responsible for planning, supervision, and technical control of the works, but also for arranging physical implementation of the works, mostly by direct intervention.

Length of completed roads: 1,185 km

Drainage structures: 3,820,000 qm / along 560 km


Transport and Infrastructure


DC Asia


Ministry of Rural Development Phnom Penh, and Kreditanstalt für Wiederaufbau, Frankfurt

Project Activities

The Civil Works Consultant Contractor (CWCC) was responsible for :

  • Planning - procurement of equipment through international and national bidding, determination of individual projects and the formulation of technical proposals, preparation of standards and specifications
  • Construction - supervision of the implementation of works, including management of site operations, quality control, and acceptance
  • Maintenance - for the upkeep of the executed works, through routine and periodic maintenance
  • Reporting - preparation and submission of monthly, quarterly, and final reports, and socio- economic impact studies of the compeleted projects.


From 1995 to 2005


Juergen Supik