|Cost to Build||₡10,000|
The Traffic Park is a unique building available from the Cities: Skylines Mass Transit DLC.
To unlock it, you must have 5,500 weekly passengers using public transportation in your city. This also requires the Worthy Village population milestone, which can be anywhere from 360 to 1,500 population, depending on the map.
Once you fulfill these requirements, you’ll be able to build the Traffic Park from the Landmarks tab of the Unique Building menu for ₡100,000.
Although the Landmarks Unique Building tab is unlocked rather early, expect to be well into mid- or late game by the time this is unlocked – just because 5,500 is a rather large number of passengers.
Here’s a few tips for getting more people to use your public transport.
Tip #1: Connect Residential To Workplaces and Shopping
The bulk of your commuters are going to be people going to and from work.
Make sure there’s a public transport option taking people from residential zones to your industrial, office, and commercial clusters.
Tip #2: Place Stops at Unique Buildings, Parks, and Plazas
Unique buildings and other leisure establishments can attract a lot of citizens and tourists.
Make sure they’re not driving there by placing a bus stop or rail transit station very close by.
Tip #3: Make Public Transport Free
You can further encourage public transport by making it free of charge. And this is easy to accomplish:
Open the Policies panel, and check ‘Free Public Transport’ under the City Planning tab.
Tip #4: Try a Hierarchy Approach
The more convenient and efficient you make your public transport system, the more your citizens are likely to use this.
A good method to try is to have one local mode of transport collecting passengers from smaller streets, then allowing them to transfer easily to a longer-distance mode of transport.
For example, you can have bus stops along your smaller streets (so people can easily walk to them from where they live and work).
You can then place one bus stop where they can easily transfer to a metro that takes them farther across the city.
Going one step further, you can have that metro bring them to intercity public transport like a train station, harbor, or airport.
Tip #5: Get Intercity Transport When You Can
Intercity transport options can take a while to get access to (because of cost, the milestones required, or the inaccessibility of the outside connections), but they will play a big role in getting you to 5,500 weekly passengers.
Trains, harbors, and airplanes bring in passengers in large numbers. So definitely build these whenever possible.
This strategy works even better if your city has a high Attractiveness score (due to having high land value and plenty of unique buildings).