39 CP 2020 ANNUAL REPORT Average train weight  is defined as the average gross weight of CP trains, both loaded and empty. This excludes trains in short-haul service, work trains used to move CP’s track equipment and materials, and the haulage of other railways’ trains on CP’s network. An increase in average train weight indicates improved asset utilization and may also be the result of moving heavier commodities. Average train weight of 9,707 tons in 2020 increased by 578 tons, or 6% compared with 9,129 tons in 2019. This increase was a result of improvements in operating plan efficiency, continued improvements in operational efficiency due to moving longer and heavier export potash and Grain trains, and improved winter operating conditions in the first quarter of 2020. This increase was partially offset by moving lower volumes of heavier commodities such as Canadian coal and crude. Improvements for Grain trains were driven by the High Efficiency Product ("HEP") train model, which is an 8,500-foot train model that features the new high-capacity grain hopper cars and increased grain carrying capacity. Average train weight of 9,129 tons in 2019 increased by 29 tons from 9,100 tons in 2018. This slight increase was a result of improvements in operating plan efficiency. This increase was partially offset by the implementation of CP's winter contingency plan in the first quarter of 2019 resulting in shorter and lighter trains within the operating plan. Average train length  is defined as the average total length of CP trains, both loaded and empty. This includes all cars and locomotives on the train and is calculated as the sum of each car or locomotive's length multiplied by the distance travelled, divided by train miles. This excludes trains in short-haul service, work trains used to move CP's track equipment and materials, and the haulage of other railroads' trains on CP's network. An increase in average train length indicates improved asset utilization. Average train length of 7,929 feet in 2020 increased by 541 feet, or 7%, compared with 7,388 feet in 2019. This increase was a result of improvements in operating plan efficiency and continued improvements in operational efficiency due to moving longer Grain and export potash trains. This increase was partially offset by moving lower volumes of commodities such as Canadian coal, which move in longer trains. Improvements for Grain trains were driven by the 8,500-foot HEP train model. Average train length of 7,388 feet in 2019 increased by 75 feet, or 1%, from 7,313 feet in 2018. This was a result of improvements in operating plan efficiency and increased Intermodal volumes which move on longer trains. This increase was partially offset by the implementation of CP's winter contingency plan in the first quarter of 2019 resulting in shorter and lighter trains within the operating plan. Average terminal dwell is defined as the average time a freight car resides within terminal boundaries expressed in hours. The timing starts with a train arriving at the terminal, a customer releasing the car to the Company, or a car arriving at interchange from another railroad. The timing ends when the train leaves, a customer receives the car from CP, or the freight car is transferred to another railroad. Freight cars are excluded if they are being stored at the terminal or used in track repairs. A decrease in average terminal dwell indicates improved terminal performance resulting in faster cycle times and improved railcar utilization. Average terminal dwell of 6.5 hours in 2020 increased by 2% from 6.4 hours in 2019. This unfavourable increase was a result of aligning the operating plan to demand in order to maintain network efficiencies in the last three quarters of 2020. Aligning the operating plan to demand resulted in increased average train weight, average train length, and increased locomotive productivity. Average terminal dwell of 6.4 hours in 2019 favourably decreased by 6% from 6.8 hours in 2018. This favourable decrease was due to improved network fluidity. Average train speed  is defined as a measure of the line-haul movement from origin to destination including terminal dwell hours. It is calculated by dividing the total train miles travelled by the total train hours operated. This calculation does not include delay time related to customers or foreign railways and excludes the time and distance travelled by: i) trains used in or around CP’s yards; ii) passenger trains; and iii) trains used for repairing track. An increase in average train speed indicates improved on-time performance resulting in improved asset utilization. Average train speed was 22.0 mph in 2020, a decrease of 1%, from 22.2 mph in 2019. This decrease in speed was a result of aligning the operating plan to demand in order to maintain network efficiencies in the last three quarters of 2020, partially offset by improved winter operating conditions in the first quarter of 2020. Aligning the operating plan to demand resulted in increased average train weight, average train length, and increased locomotive productivity. Average train speed in 2019 was 22.2 mph, an increase of 3%, from 21.5 mph in 2018. This increase in speed was due to the completion of network infrastructure projects, partially offset by the impact of harsh winter operating conditions and network disruptions in the first quarter of 2019. Locomotive productivity  is defined as the daily average GTMs divided by daily average operating horsepower. Operating horsepower excludes units offline, tied up or in storage, or in use on other railways, and includes foreign units online. An increase in locomotive productivity indicates more efficient locomotive utilization and may also be the result of moving heavier commodities. Locomotive productivity was 207 GTMs/OHP in 2020, an increase of 5 GTMs/OHP, or 2%, compared to 202 GTMs/OHP in 2019. This increase was primarily due to improvements in operating plan efficiency as a result of aligning the operating plan to demand. Locomotive productivity was 202 GTMs/OHP in 2019, an increase of 4 GTMs/OHP, or 2%, compared to 198 GTMs/OHP in 2018. This increase was primarily due to improvements in operating plan efficiency as a result of aligning the operating plan to demand. Fuel efficiency  is defined as U.S. gallons of locomotive fuel consumed per 1,000 GTMs. Fuel consumed includes gallons from freight, yard and commuter service but excludes fuel used in capital projects and other non-freight activities. An improvement in fuel efficiency indicates operational cost savings and