trade barriers, lack of international trade agreements between governments
an increase in demand, lack of transportation equipment and truck weight limitations
higher fuel costs and further regulation of engine emissions
bad road conditions, poor infrastructure and bottlenecks at borders
poor warehousing and storage facilitie
declining orders and backlogs in manufacturing
loss, damage and deterioration of stock
a rise in truck rates
high border tariffs and import taxes
long delays and transit times
a capacity shortage
overcapacity