Department of Public Works and Highways
AVERAGE INTERNATIONAL ROUGHNESS INDEX (IRI) PER REGION
As of 05 March 2016
     
Table 1.3a
       
  REGION TOTAL  
  CAR 6.88  
  NCR 4.69  
  NIR 4.93  
   I 4.10  
   II 4.88  
   III 3.92  
   IV-A 4.11  
   IV-B 5.30  
   V 4.22  
   VI 5.22  
   VII 4.23  
   VIII 3.48  
   IX 4.16  
   X 4.90  
   XI 4.23  
   XII 4.36  
   XIII 4.94  
  Nationwide Average 4.62  
       
  Note:     
     
  Segments of the roads with an average IRI of 1-3   
  are in “good” condition,  >3-5 in “fair” condition, >5-7 in   
  “poor” condition and >  7 in“bad” condition.  
       


Notes:
 

1.) Road data provided are as of  13 December 2016.

2.) "No Assessment" refers to Road Sections that are either under construction and/or segments with length below the 50-meter gauging length.

3.) National Roads are classified into:

        Primary Roads - roads that connect major cities with population of  at least 100,000.   

        Secondary Roads - other roads which complement with national primary roads to provide access to main population and production centers of the country.  

        Tertiary Roads - other existing roads under DPWH which perform a local function. (In the map, these roads are represented only by letters.

For questions regarding this website contact dpwh_feedback@yahoo.com or the DPWH CFMC .

 

Last updated: 03/24/17.

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