Transportation Demand Analysis Assignment PDF

Explain using an illustration the concept as one of the components of a of a system in the context of transportation. Define activity Expound on what you understand the by travel demand. Explain the notion of transportation supply What is Ievel of service for a transportation option? Sketch on th...

Explain using an illustration the concept as one of the components of a of a system in the context of transportation. Define activity Expound on what you understand the by travel demand. Explain the notion of transportation supply What is Ievel of service for a transportation option? Sketch on the same graph of level of service, S (t = travel time) versus volume of travel, V-the supply curve S = f (T, V) and the demand curve V = f (A, S) for transportation. Explain the shapes of these two curves and the equilibrium point For an area, the demand for travel is given by V = 5000-100t. After improvement in the transportation system, the new demand function is given by V = 7500-150t. Note that t is travel time in hours and V is the volume of flow in trips per hour. Sketch using a pencil and a ruler the two demand functions on a t-V graph and comment on the parameters in the two functions The market for taxi services for a town is given by the following demand and supply functions where V is the flow in veh/hr and t is the travel time in hours Vo = 1000-100t Vs = -125+125t Where does the market clear? What happens if demand shifts such that now the demand is given by the following function? Show this shift on a diagram. VD= 1450 - 100t Discuss with illustrations the equilibrium of demand and supply functions for two cases: (i) Constant supply, and (ii) Constant demand. H) Discuss what happens when the transportation system is altered through improvement on the old one so that the supply function shifts from the old system (J deg) to the the new system (J') in the figure below. In the diagram below, equilibrium that applies to the can be demonstrated by predicting the impacts or consequences that arise after adjustment options in the transport system and activity system. Define the models that are represented by S, D, E, R and A’ Explain the following analysis cycle in the process of prediction of flow in a transport system By discussing the levels of choice for the following cases, show that the demand for transportation is a derived demand 1. An individual desirous to travel to a football stadium on a Saturday. 2. A commercial enterprise firm dealing in a certain commodity that should be shipped to a certain market. The road users are the customers for whom an acceptable level of service must be ensured. These ployment/consumers always desire to have a defined activity pattern so as to fulfill their lifestyle aspirations. Define activity pattern under employment, residence and consumption patterns. Hence define the levels of choice for consumers of transportation. Define elasticity and inelasticity D with respect to a service attribute, X. What is Marginal utility and Marginal Rate of Substitution Explain the following concepts in Transportation demand analysis 1. Utility of a consumer 2. Level of Service of transportation pents relevant to lecition making. 3. Indifference curve Give the five reasons why disaggregate mode choice models better than aggregate models in mode choice analysis? Consider two zones i and within a transportation study area that has been cordoned off for analysis. Let the trips from /toj be 5000, and three modes are available with in-vehicle-travel time, walk time, wait time, fare cost and parking cost characteristics given in the table below. Compute the trips made by each of the three modes. If the train fare in increased by 5, what is the new number of train trips and comment on this answer? Why is the logit model more realistic analytical procedure in mode choice modeling? Give the four characteristics of indifference curves. Define each of the following steps in urban transportation demand modeling: i. Trip generation ii. Trip distributions iii. Modal split iv. Network assignment Using an illustration, describe the following terms with respect to urban transportation demand Analysis. i ) Trip production ii) Trip attraction iii) Home based trips ) Assume the following often used three algebraic forms of the travel demand function: Linear form: Product form:. Exponential form: Determine the expressions for elasticity of demand for each of them. What is generalized travel cost with respect to attractiveness of competing zones for trips produced by a particular zone?