The Save Our Neighborhood traffic planning proposal suggests multiple solutions to reduce traffic in the Poplar Bridge neighborhood, including adjusting traffic light timing, installing stop signs and crosswalks, adding speed humps, changing the road configuration on Nine Mile Creek, lowering the speed limit, and restricting truck traffic. The proposal aims to improve traffic flow on major roads while increasing travel time through the neighborhood to deter cut-through traffic during rush hours. Considerations include ongoing police enforcement and monitoring whether the solutions effectively reduce neighborhood traffic levels over time.