first aerial spinning of additional main cables on a loaded, fully operational suspension bridge. Traffic soon increased well beyond predictions, and has remained at maximum capacity despite the enlargement from four to six lanes, the addition of the railway, and the building of a second bridge serving Lisbon, the Vasco da Gama Bridge. A third bridge has been on and off government plans for some time, but the idea has been dropped presently, due to Portugal's budget constraints. Popular culture Several movies have been filmed on the bridge, including some scenes in the 1969 James Bond film On Her Majesty's Secret Service when James Bond is in a car driving across a bridge with Marc Ange Draco's henchmen, and it is also featured near the end of the movie when Bond marries Tracy and drives across the bridge with her in Bond's Aston Martin. Normally, pedestrians cannot walk across the bridge, but every year there is a half-marathon that starts on the south bank and finishes in the north bank (Belem). In September 2017, an observation deck was built allowing people to go to the platform. Tolls Using the bridge has always incurred a toll, first in both directions and then, from 1993, while travelling northbound only. The toll plaza situated on the south bank of the Tagus River. The tolls have become a source of political dispute in recent years. The bridge was projected to have paid all debt in 20 years, and to become toll-free (or have a reduced toll) after that period. However, the Government kept charging tolls well beyond the 20-year period, until it gave the concession to Lusoponte, creating a monopoly of the Tagus crossing in Lisbon. When opened, people had to park their car and walk to buy a toll ticket costing 20 escudos. On 14 June 1994, the government, which ran the bridge at the time, raised the toll by 50%, from 100 to 150 escudos, to prepare to give the bridge into private concession for 40 years from 1 January 1996. The concessionaire was Lusoponte, a private consortium formed to build the Vasco da Gama Bridge at no cost to the public finances in exchange for tolls from both bridges. As a result, a popular uprising led to road blockades of the bridge and consequent police charges, an event which made the right-wing Government highly unpopular and which many believe led to