Showing posts from July, 2013

Intelligent Transportation System(ITS)

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 etc. are the technologies which come under ITS.
Transportation users are kept informed of the various transportation services as per their requirements. Suppose you have reserved your seat in a bus, and you are waiting at the bus station for the bus. If due to some reason the bus is late, you will get the information about the bus being late so you can plan your time accordingly. All the updated information about the arriving and departures of the buses can be displayed with the electronic devices so one is always informed about all the schedule.
The traffic volume can be calculated using the GPS techniqu…

Tunneling (Transportation Engineering)

Hi there,
 A tunnel is needed when an obstacle in the form of a hill or rising ground is met within the alignment of a highway or railway track. The first tunnel , about 4000 years ago of a cross section of 3.6 m * 4.5 m; 910 meter long, was built in Babylon connecting two buildings. In Europe the first tunnel was built by Roman Emperor Cloudius in 54 AD for carrying spring water through Apennines.  The cross of the tunnel was 3.0 m * 1.8 m and its length was 5.8 Km. It was completed in 12 years by 30, 000 laborers.
This article covers the following aspects of Engineering related with the Tunneling: Sections of tunnels: advantages, limitations and suitability of each sectionShaft, pilot tunnel.Driving tunnel in rocks, sequence of construction operationsFull face method, heading and bench method, drift methodDriving tunnels in soft ground, sequence of construction operations, needle beam methodShield tunneling, compressed air tunneling.Sections of tunnels, suitability of each section:In ge…

Highway Geometrics- Short introduction

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 running of the traffic it must have the required formation width. For the durability of the roads, it must have the required camber. Super elevation is required at the horizontal curves to keep the fast moving vehicles on the track. Sight distance is again very important in terms of safety and therefore for effective traffic movement. You must consider the Codal specifications to look for the standard values. In India Indian Roads Congress is an active organization which provides the specifications for design. In USA it is AASTHO.
If you are a highway engineer, then remember that you have the responsibility of the safety of the vehicles and the…