Trail signage?

Could we get signage that educates pedestrians and bikers on sharing the trail?

Full description

With more and more people using the river trails it would be beneficial to educate the public on how to share the trail with other users. Signage or arrow/guides on how to pass and which side to use? This seems obvious to some but many are new to the city/busy trails/multimodal use. During Northshore sport events, concerts/festivals and high commute times the trails get pretty congested. Thanks!