'Gravity model' diaporamas de présentation

COMBINED MULTI MODAL TRIP DISTRIBUTION AND MODAL SPLIT TECHNIQUE APPLIED IN THE EMME/2 TRANSPORT DEMAND MODEL FOR THE CITY OF TSHWANE By Kerneels Olivier City of Tshwane Metropolitan Municipality PURPOSE

Gravity Model – resembles Isaac Newton’s formula for grativational attraction between any two celestial. masses. Population size and distance are used to explain the interaction flow Iij, between origin I and destination j. Gravity model allows both size and distance to vary simultaneously:.

The Green Bank Telescope: Overview and Antenna Performance. Richard Prestage GBT Future Instrumentation Workshop, September 2006. Overview. General GBT overview (10 mins) GBT antenna performance (20 mins). GBT Size. GBT optics. 100 x 110 m section of a parent parabola 208 m in diameter

1. Most migrants move only a short distance, and then typically to major cities. 2. Rapidly growing cities are populated by migrants from nearby rural areas; in turn, the “gaps” left in the rural population are filled by migrants from more distant areas.

Retail Gravity Models and GIS. Jonathan Dorwart GIS Analyst / Planner Wikstrom Planning and Economic Consultants April 5, 2007. Retail Gravity Models and GIS. Typical market analysis estimates competitive position on the basis of trade areas…. 5 min. 10 min. 15 min. Travel time….

Trip Distribution. Source: NHI course on Travel Demand Forecasting, Ch. 6 ( 152054A). Objectives. Describe inputs and outputs to gravity model Explain concept of friction factors Explain how friction factors are obtained Apply gravity model to sample data set. Terminology. Friction factor

THE ROLE OF INFORMATION AND COMMUNICATION TECHNOLOGY ON SERVICE TRADE: GRAVIT Y MODEL APPROACH. DYAH TITIS K. WARDANI FAIZA HUSNAYENI NAHAR HAIRUNNAS. UNIVERSITAS MUHAMMADIYAH YOGYAKARTA. INTRODUCTION. BACKGROUND. ASEAN INTEGRATION IN SERVICE.

Chapter 3 . Spatial Interaction and Spatial Behavior The Movement of people, ideas, and commodities within and between areas. Questions. Factors influence human’s decision on interacting with space How does distance affect the decisions Space activities and exchange of commodities

COMBINED MULTI MODAL TRIP DISTRIBUTION AND MODAL SPLIT TECHNIQUE APPLIED IN THE EMME/2 TRANSPORT DEMAND MODEL FOR THE CITY OF TSHWANE. By Kerneels Olivier City of Tshwane Metropolitan Municipality. PURPOSE

Predicting Migration: The Gravity Model and Ravenstein. Why do people migrate to specific places?. Objectives. Today we will be able to identify how geographers predict the size and destination of migration flows. Distance on Migration.

SESSION I REGIONALISM: BASICS AND OVERVIEW. JAIME DE MELO. This version, March 2004. OUTLINES: SESSION I-VI . OUTLINE: SESSION I .  Regional Integration agreements (RIAS) and the WTO.  Types of Barriers to Trade.  Classifying regional trading arrangements (RTAs).

Analytical Needs and Services Trade Data. Rainer Lanz OECD Trade and Agriculture Directorate. Measuring and Enhancing Services Trade Data and Information Conference Washington, D.C., September 14, 2010. Overview. What is Services Trade?

Modeling Migration.

URBANIZATION. “Cities have always been the fireplaces of civilization, whence light and heat radiated out into the dark, cold world.” - Theodore Parker. Suburbanization Infrastructure Edge city Planned communities. Central-place theory World cities Primate city. Bid-rent theory

Will Slot Machines be a Jackpot for Maryland?. Robert E. Carpenter Department of Economics, UMBC Maryland Institute for Policy Analysis and Research (MIPAR). Disclaimer: The views in this presentation are those of the author. The hopes for slots.

Gravity Model. Madison McCloskey. Principal and Definitions. Gravity models are used in various social sciences to predict and describe certain behaviors that mimic gravitational interaction as described in Isaac Newton’s law of gravity

TRB Transportation Planning Applications 2011 | Reno, NV. Destination choice model success stories. Rick Donnelly & Tara Weidner | PB | [ donnellyr , weidner ]@ pbworld.com. Overview. Concepts Albuquerque HBW example (urban) Maryland example (statewide) Portland (freight)

Unit 2 Lesson 09. Student Will…. Be able to discuss Ravenstein’s laws of migration Be able to discuss the gravity model Be able to discuss push & pull factors of migraiton. Language Check. Emigrate: Leaving your country for good for another. Immigrate: Coming to a country.

Chapter 12 sections 2 and 4. Central Place Theory and Market Area Analysis. Terms/Concepts. Central Place Theory Central Place Market Area / Hinterland Range Threshold Gravity model. Why is that Store There?.

Maritime Transport Costs and Trade. jane.korinek@oecd.org. Why?. As tariffs and excess costs in production have fallen, other costs such as transport have become relatively more important Gravity model : “workhorse” of trade flow models, uses distance as a proxy for trade costs.