First, define the goals of your Trip Reduction Ordinance

Some common goals of TRO policies around the world are to:

• Encourage sustainable transport
• Reduce emissions
• Reduce fuel consumption 
• Reduce the number of single-occupancy vehicle trips
• Reduce the number of Vehicle Kilometers Traveled (VKT)

These are the most common examples, but cities can think broader and craft TROs to improve affordability (lower commute costs) or public health (more focus on biking and walking) as well.