I've noticed this in real life. If I run in the city I push myself harder than if I run in a more remote park. Further if I run in the city along a route popula

I've noticed this in real life. If I run in the city I push myself harder than if I run in a more remote park. Further if I run in the city along a route popular with other runners I'll run even harder (the stats provided by my running app also backs this perception up).