Share
Explore BrainMass

Transport Engineering

Transport engineering is the study of principles to the planning, operation and management for any mode of transportation to provide compatible movement of people and goods.Planning transport engineering involves urban planning. Forecasting traffic involves a computer model, requiring the estimation of trip generation, mode choice and route assignment. 

Transportation engineering mainly involves planning, design, construction, maintenance and operation of transportation facilities. The facilities support air, highway, railroad pipeline, water and space transportation. The design aspect of transport engineering includes the sizing of transportation facilities, determining the materials and thickness used in pavement designing the geometry of the roadway. 

Traction and Total Resistance

Would you please help me with the following question: A 90 tonne rear dump truck travels on an 8% grade loose gravel road. Determine the traction and total resistance i. On the way up when the truck is loaded ii. On the way up if the truck is empty For the following conditions: * Rolling resistance factor = 100 kg/tonn

Energy Transfer in Mechanical Systems

A wheel is 800mm in diamiter and has a mass of 1000kg. on a horizontal surface without skidding, the vehicle accelerates uniformly at 0.5m/s^2 for 5 seconds. calculate the showings of all your workings to find the combined linear and kinetic energy of the wheel after the period of acceleration.

Centripetal force in centrifugal clutches and vehicle stability

(See attachment for full description) 1. a) What variable factors affect the size of the centripetal acceleration for a body moving in a curved path? b) What additional variable factor affects the centripetal force causing the acceleration? c) Write down the two formulas for centripetal (or centrifugal) force which you mi

Mechanical Engineering Dynamics

A 3000 lb car rests on a horizontal street out of gas with its brakes locked. Find the magnitude of the force P, required by the person pushing the vehicle to give the car an acceleration of 1 ft./s^2. The coefficient of kinetic friction between the car and the street is (.25). Thank You!

The probability

A young engineer has invented holographic mobile phones and has approached a venture capital company to invest in it. The venture capital company considers the product to be an all or nothing product: either everyone will want one because everyone else has one or no one will want one because there will be no one to use it with.

Designing using ROOM We are planning to design a new light-voice controlling system. The voices will basically coordinate the crossing of a road by blind people. Suppose the crossing will be operated by two coordinated systems: a light system and a voice system. The light controlling system is an ordinary set of traffic lights intended for vehicles, but with the amber light flashing before the lights change over to green. These lights operate in cycles and display the colors in the order: green, continuous amber, red, flashing amber, green. The set of voices is intended for blind people and makes alternately the voices 'You can cross' and 'Stop'. Making the voice 'You can cross' goes through two phases; a first voice phase 'You can cross' followed by a second voice phase 'Prepare to stop' before the sound change to the 'Stop' voice. The voice 'Stop' lasts through exactly the period from the onset of the green light in traffic lights to the end of the continuous display of the amber light. The periods of playing the voice 'You can cross' and the amber traffic light are also the same. No two lights or two voices are to be displayed or played together at any time in either set when taken in isolation. To simplify the design, we will assume the crossing is not controlled by blind people and that the lights are operated continuously in approximately fixed cycles. Timing parameters of the display of lights or playing of voices are as follows. Phase Delay of phase Green light d1 Red light d2 Continuous amber light d3 Flashing amber light d4 Voice 'You can cross' d5 Voice 'Prepare to stop' d6 Voice 'Stop' d7

We are planning to design a new light-voice controlling system. The voices will basically coordinate the crossing of a road by blind people. Suppose the crossing will be operated by two coordinated systems: a light system and a voice system. The light controlling system is an ordinary set of traffic lights intended for vehicles,