Table 1 - Objectives of HOV scheme

Objective	Importance of objective	Means of achievement	Expected impact of HOV scheme
ECONOMY
Reduce number of vehicles in M1 corridor	H	Higher occupancy	M
Reduce delays for HOVs	H	Increased capacity for HOVs, smoother flows, reduced demand	H
Improve journey time reliability for HOVs	H	Increased capacity for HOVs, smoother flows, reduced demand	H
Minimise delay for non-HOV vehicles	H	Smoother flows, reduced demand	L
SAFETY
Maintain safety levels in M1 corridor	H	Reduced demand	M
Avoid new accident risks	H	Lane design at transitions of HOV lane, signing	M
ENVIRONMENT
Avoid adverse landscape effect	M	Design of scheme and signing	H
PUBLIC
Improve public awareness of HOV schemes and influence travel behaviour2	H	Publicity and marketing	H
Improve customer satisfaction	H	Better reliability, less delay (may be reduced fairness)	M
ACCESSIBILITY
Encourage modal shift	-	Not applicable to HOV scheme	-
Avoid community severance due to induced traffic	-	Not applicable to HOV scheme	-
Improve reliability of service	-	Not applicable to HOV scheme	-
Encourage slower modes	-	Not applicable to HOV scheme	-
INTEGRATION
Integration of travel modes	-	Not applicable to HOV scheme	-
Regeneration	-	Not applicable to HOV scheme	-
Wider social objectives	-	Not applicable to HOV scheme	-
OPERATIONAL ISSUES
Determine compliance	H	Monitoring	-
Determine extent of take-up	L	Monitoring	-
Optimise operation of scheme	H	Times of operation, signing, enforcement	-
Times of operation, signing, enforcement	M	Modelling, simulation	-
BUSINESS CASE
Establish the case for any further rollout of HOV schemes	H	Monitoring	-