Conclusion

Roadways are built to ease the flow of transportation so human can travel from one distance to another distance easily. There are many type of transportation nowadays such as cars, motorcycles, lorries and so on. Road has played an important role in the trade and transportation system throughout the world, and it become rapid increase in the pavement infrastructure development in Malaysia. The roads are designed to ensure the convenience of consumers and the public. Unfortunately, the road might be damage because of the constant use by heavy traffic destroys asphalt roads and unsuitable weathering. Damaged roads need to repair immediately as they can cause accidents and traffic congestion. There are many types of road damages that we have learnt during our class.

Type of road damages :

Alligator Cracking Bleeding Block Cracking Bumps and Sags Corrugation Depression Edge Cracking Longitudinal Transverse Cracking Patcching & Utility Cut Patching Potholes Rutting Shoving Ravelling

We have asked to do some survey the severity of the road damages on roadways in UTHM. Before we start the survey, we decided to identify the type of road damagest by referring the notes and other resources so that the survey can be done easily.

Identifying the road damages by referring notes

After that, we start our survey on 100m long road. The roads are measured on their length and width.

Measuring the width of road

We identify the road damages on the 100m sampel length of road and record it in distress survey column. The road damages can be classified on low damage, medium and high damage. During the survey, we have identified many type of road damages such as Alligator Cracking, Block Cracking, Depression, Patching, Potholes, Edge Cracking, and Ravelling. Figure belows shows some of the road damages that have been surveyed.

Low Edge Cracking

Medium Patching

Low Pothole

Block Cracking

Medium Alligator Cracking

Medium Depression

Each of the data are calculated to get the density. The calculation of density is help to determine the deduct value that can obtained from deduct value againt density graph. Lastly, the cumulative deduct value is determined by total cumulative deduct value against total deduct values graph. Lastly, the Pavement Condition Index (PCI) is calculated and the degree of damages will be known. The PCI measures the pavement’s structural integrity and surface operational condition.

Therefore, for 1 km sampel, we have identifiy the pavement conditions. The data can be concluded as follow :

Sample Condition Action1 Poor Condition Major Rehabilitation2 Good Conditon Routine Maintanance3 Fair Condition Rehabilitation4 Good Condition Rehabilitation5 Good Conditon Rehabilitation6 Serious Condition Reconstruction7 Fair Condition Rehabilitation8 Sastifactory Condition Preventive Maintanance9 Sastifactory Conditon Preventive Maintanance

10 Sastifactory Condition Preventive Maintanance