Search Results for: environment

Author: Dr. Jean-Paul Rodrigue Climate change is expected to have notable impacts on transport systems, mainly because of the risks of rising sea levels, more precipitation events, and heat waves. 1. Expected Impacts of Climate Change Climate change has occurred throughout the world’s climatic history with cooling (e.g. Ice Ages)

Author: Dr. Jean-Paul Rodrigue The St. Lawrence Seaway is an inland navigation system linking the St. Lawrence River and its oceanic access to the Great Lakes through channels and locks. 1. Rationale and Construction The St. Lawrence Seaway is one of the world’s most comprehensive inland navigation systems, the outcome

Source: Adapted from the Ellen MacArthur Foundation. The conventional organization of supply chains is linear, involving a sequence from suppliers, manufacturers, and distributors to the user. Despite the perceived efficiency of manufacturing and freight distribution, the consumption and use of material goods are associated with high waste levels. More than half

Author: Dr. Jean-Paul Rodrigue A spatial interaction is a realized flow of passengers or freight between an origin and a destination. It is a transport demand / supply relationship expressed over a geographical space. 1. Conditions for Spatial Flows Estimating flows between locations is a methodology of relevance to transportation.

Author: Dr. Jean-Paul Rodrigue Logistic zones are a grouping of activities related to freight distribution such as distribution centers, transportation, and supporting services within a defined and often planned area. 1. The Clustering of Logistics Logistics tend to agglomerate at specific locations, mainly because of the accessibility they confer, the

Authors: Dr. Jean-Paul Rodrigue The North American economy is articulated along major corridors that connect commercial gateways to their hinterlands. 1. The Spatial Structure of Corridors Transport corridors are considered the backbones of transportation networks, linking major gateways and hubs through a convergence of freight and passenger flows. Most often,

Criteria Issues Goals Mitigate congestion and demand along high density interurban corridors. Extending services into lower density regions for political purposes (e.g. social equity) commonly lead to economic failure. Spatial structure Limited impacts on the spatial structure. HSR routes supporting the existing spatial structure are the most effective. Limited number

Author: Dr. Jean-Paul Rodrigue High speed rail refers to passenger rail systems running at operational speed between 200 and 300 km/h, and above in some cases. 1. High Speed Rail Networks Although trains could reach 200 km/hr by the beginning of the 20th century, operational speeds rarely surpassed 130 km/hr.

Year “Triple E Class” “E Class” (Emma Maersk) “S Class” (Sovereign Maersk) Capacity (TEU) 18,000 14,500 8,400 Length (meters) 400 393 348 Width (meters) 59 56 43 Draft (meters) 15.5 15.5 14 Deadweight (tons) 165,000 156,900 105,000 Speed (knots) 23 (19 optimal) 25.5 25 The threshold for containerized maritime shipping