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Traffic and Income Flows during 1992-2005
The number of vehicles crossing the toll stations increased from close to 21 millions during 1992, the first full year of operation, to more than 50 millions in 2005, the last year of operation.
Some interesting findings on longer-term effects appear, when looking at the period 1992-97, during which the payment scheme was unchanged. During this 5-year period there was a slower average annual growth in total traffic crossing the toll cordon (1.8 %), compared to the general growth in the Trondheim area (2.8 %) or the County of Sør-Trøndelag (2.6 %). Most of the growth in traffic crossing the cordon occurred during the charged hours, indeed 2.9 % compared to only 0.8% during the uncharged hours. Paid crossings constituted 48.6% in 1992, but grew to 51.3% in 1997.
Firstly, this indicates that the Trondheim charging scheme is associated with a slower growth in total in-bound traffic crossing the cordon, than what would otherwise have been expected. Secondly, a gradual return of traffic that initially was “priced out” of the more preferred charged time periods is evident.
The 1998 revision of the scheme led to a major increase in traffic crossing the toll cordons, and also in the percentage of vehicles being charged. Compared to the previous year, the total number of vehicles crossing toll stations increased by 39 % and charged traffic increased by 53%. The main reason for the large increase in charged traffic was the one hour extension of the charging period.
The final extension of the scheme with six additional toll stations on 1 November 2003 is already evident in the traffic data for 2003, but the full effect came in 2004 and 2005. Compared to 2002, the total number of vehicle crossings in 2005 is up by 37% and charged crossings are up by 40%.
The next figure shows how the flow of gross revenues developed during the lifetime of the charging system. The increase in 1998 is due to the introduction of the zone scheme. A second large increase came in 2001 after a 25 % raise in the basic toll level and a third large increase in 2004 is attributable to the final extension of the scheme. In total the charging scheme brought in 1,818 million NOK (227.25€) in gross revenues.
Annual operation costs for the Trondheim charging scheme have been 10-11% of gross revenues throughout its period of operation.
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