Effectiveness of "Vehicle Noise Laws Enforced" Signage
Need Statement 720
Problem
The “VEHICLE NOISE LAWS ENFORCED” sign was established by MnDOT in accordance with two Minnesota statues:
- Minn. Stat. Sec. 169.69 MUFFLER
- Minn. Stat. Sec. 169.693 MOTOR VEHICLE NOISE LIMITS
- Minnesota Pollution Control Agency - Noise
Currently, there is no documented evidence that shows noise from vehicles is reduced due to this sign. MnDOT would like to assess the effectiveness of these signs.
Objective
This research will investigate the effectiveness of the Vehicle Noise Law Enforced Signs in reducing noise from vehicles. The result of this research would help in determining if there is a need to modify the Vehicle Noise Laws Enforced sign language in the Traffic Engineering Manual (TEM).
Previous research
A few general noise level modeling and measurement studies were found in the literature review. No relevant references on the presence of signage and effectiveness.
Strategic priorities
- Asset Management:
Research results could improve general criteria, fabrication, and installation guidance in traffic engineering manual.
Expected outcomes
- New or improved technical standard, plan, or specification
- New or improved manual, handbook, guidelines, or training
- New or improved policy, rules, or regulations
Expected benefits
- Change or inform a MNDOT policy
Technical advisory panel
Name and affiliation of individuals to consider for the Technical Advisory Panel.
- Scott Thompson, MnDOT District 7 Traffic Engineer
- Griffin Enyart, MnDOT District 3 Assistant Traffic Engineer