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F I S C A L I M P A C T R E P O R T
SPONSOR Sanchez, M.
ORIGINAL DATE
LAST UPDATED
2/7/2006
HB
SHORT TITLE Reduce Speed Limit & Define “Safety Corridor”
SB 720
ANALYST McOlash
APPROPRIATION (dollars in thousands)
Appropriation
Recurring
or Non-Rec
Fund
Affected
FY06
FY07
None
(Parenthesis ( ) Indicate Expenditure Decreases)
SOURCES OF INFORMATION
LFC Files
Insurance Institute for Highway Safety (IIHS)
National Highway Traffic Safety Administration (NHTSA
)
Responses Received From
NM Department of Transportation (NMDOT)
Administrative Office of the Courts (AOC)
Attorney General’s Office (AGO)
NM Taxation and Revenue Department (TRD)
NM Department of Public Safety (DPS)
SUMMARY
Synopsis of Bill
Senate Bill 720 amends 66-7-301 NMSA 1978 and allows the Department of Transportation to
designate areas as a safety corridor. A safety corridor is defined as a highway segment with a
five-year history of ten or more fatal or serious injury crashes. Double fines will apply in safety
corridors. Double fines cannot be imposed or enforced until there has been conspicuous notice
of the safety corridor designation for at least ten days prior to enforcement.
The bill also amends 66-7-301 NMSA 1978, 66-7-302.1 NMSA 1978 and 66-7-303 NMSA 1978
and lowers the maximum speed limit in the state to 65 miles per hour.
pg_0002
Senate Bill 720 - Page
2
FISCAL IMPLICATIONS
There will be administrative impacts in the time and effort required to procure, manufacture and
install new traffic signs to address a change in maximum speeds estimated at $270 thousand. In
addition, there will be added administrative time associated with performing traffic-engineering
studies to support the establishing of safety corridors.
SIGNIFICANT ISSUES
Speeding-related crashes resulted in 13,192 fatalities in 2004. (NHTSA, 2005)
The economic costs of crashes that involved excessive speed were $40.4 billion, representing 18
percent of total crash costs and an average cost of $144 for every person in the United States.
(NHTSA, 2002)
When speed increases from 40 mph to 60 mph, the energy released in a crash more than doubles.
(IIHS, 2003)
Research by IIHS found that when speed limits were raised by many states in 1996, travel speeds
increased and motor vehicle fatalities went up approximately 15 percent on Interstate highways
in those states.
Alcohol and speeding are a deadly combination. In 2002, 42 percent of drivers with a Blood Al-
cohol Content (BAC) of .08 or higher involved in fatal crashes were speeding, compared to only
15 percent of sober drivers involved in fatal crashes. (NHTSA, 2003)
The DOT has adopted the practice of establishing posted speeds based on the 85
th
Percentile
Speed which is the predominant engineering practice utilized by all of the DOT’s in the United
States. The 85
th
Percentile Speed is defined as the speed at or below which 85 percent of free-
flowing vehicles travel. This measure is obtained through the conduct of an engineering speed
study. Studies have shown that neither raising nor lowering the speed limit has much effect on
vehicle speeds. In fact, percent compliance with the posted speed limit decreases when speed
limits are reduced that are not supported by an engineering study. The only major effect on
speeds is strict enforcement, which is a continual resource constraint on all states. Consequently,
establishing the maximum speed limit at sixty-five (65) miles per hour on all facilities will likely
introduce a greater degree of non-compliance and disregard for regulatory signing particularly on
the interstate system.
TECHNICAL ISSUES
The definition of a safety corridor is not based upon the amount of traffic usage but the whether
that area of the roadway has had ten or more fatal/serious injuries crashes within a five-year time
span. There are no other criteria for designating a section of road a safety corridor. There are no
provisions for the removal of a safety corridor designation.
POSSIBLE QUESTIONS
Once a section is determined to be a safety corridor and a 5-year period has passed without any
serious accident will the designation, be removed.
BMC/nt