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Softening point of Bitumen: It is the minimum temperature at which bitumen get soft.It is important to find the softening point of Bitumen because bitumen can be easily applied on the road surface when it is soft and we have to use the fuel and fire to soften the available bitumen. Softening point tells us […]

5. What is the value of intermediate sight distance for a highway with a design speed of 65 kmph? Assuming the data for co-efficient of friction f = 0.36 and for reaction time t = 2.5 sec.Ans: 182.8 m 6. The speed of overtaking and overtaken vehicles are 70 and 40 kmph respectively on a

1. The safe stopping sight distance for design speed of 50 kmph two way traffic on a two lane road assuming co-efficient of friction as 0.37 and reaction time as 2.5 seconds is 61.4 m.2. The stopping sight distance for design speed of 80 kmph for two way traffic on a single lane road. Assume

Hi, CBR loading frame Aim: To find out the CBR(California bearing ratio) value of the given soil sub-grade. Apparatus:  CBR Apparatus soil sample with known OMC and MDD. CBR apparatus – accessories Theory: California Bearing Ratio test was invented by California State Highway Department. This test is used to design the thickness of the flexible pavement. 

Hi,Here are the images which explains the Highway curves, be it horizontal or vertical curves. Horizontal curves are simple circular curves, compound curves, reverse curves etc.There are transition curves, and at end vertical curves are explained. Thanks for the kind visit!

Overlay can be of many types: (1) flexible overlay over a exiting flexible pavement (2) flexible overlay over a rigid pavement. (3) Rigid overlay  over a flexible pavement. (4) Rigid overlay over a rigid pavement. (1) Flexible overlay over flexible pavement by convention method of design: h0 = hd – he ho= thickness of the

Intelligent Transportation Engineering(ITS) is a system which uses the new innovations and technology to control and regulate the traffic. This system is also used to provide the users the required information.The new technologies like, Automatic Traffic signals, CCTV, wireless communication devices in the hands of the traffic police, digital methods to calculate the traffic  volume

Hi,You must know the various highway cross section elements if you are a highway engineer. You might have the introduction with the cross section elements like friction, camber, formation width, road width, super elevation and sight distance etc. To design a safe and economic road you must consider all these elements. For safe and efficient

Hi,  Why appear in GATE? GATE is mandatory to take admission in the postgraduate courses in NITs and IITs. To get better colleges one should crack the exam with the 99 percentile of marks score. It is also needed to appear in the interviews of the recruitment process of many top-level PSUs (Public Sector Unions)

Cement concrete pavements Cement Concrete(CC) pavements come under the category of the rigid pavement, due to the higher flexure strength of the concrete slab. these pavements have a longer life, because of the higher durability and high load-carrying capacity. As they require very less maintenance the maintenance cost is reduced. CC pavements have a very