bhallg2k wrote:Nonsense. Montreal, Monaco, Monza and Suzuka are all afforded compromises for the sake of their "legacies" in F1. Singapore and Valencia are afforded compromises apparently due to their willingness to pay current fees. If either rationale is worthy, so is fan interest. After all, misfortune doesn't discriminate.
Thanks for your exquisite politeness. Your examples are all either historic or street circuits that do not fall under the rules that apply for new circuits. I did already point out that historic circuits are treated somewhat different compared to new tracks. But even those have to fulfil certain safety criteria in terms of run off vs speed. If they did not they got chicanes to deal with the problem after 1994.
FiA Institute wrote:Safety Analysis System (CSAS)
The CSAS is a computer tool which integrates detailed electronic image maps for the circuits with lap profile data from sensors fitted to the cars. Further information, regarding the performance of run-off areas has been collected in real accidents when cars run off the track. The CSAS tool is used to evaluate and specify the run-off areas and safety barriers at all Grand Prix circuits.
FiA Procedures for the Recognition of Motor Racing Circuits wrote:
7.6 Track edges, verges and run-off areas
Unless otherwise indicated because of features such as pit exit and entry roads, a permanent track should be bordered along its entire length on both sides by continuous white lines clearly marked in anti-skid paint, minimum 10 cm wide, and compact verges, usually between 1 m and 5 m wide, having an even surface. These verges should be a continuation of the transversal profile of the track, with no step between track and verge: any transition should be very gradual.
A run-off area is an area of ground between the verge and the first line of protection. A run-off area should be graded to the verge. If the area has a slope, this should not exceed 25% upwards (does not apply to gravel beds) or 3% downwards, with a smooth transition from track to run-off area, in relation to the lateral projection of the track surface.
7.8 Protective measures
When determining measures intended for the protection of spectators, drivers, race officials and service personnel during
competitions, the characteristics of the course should be taken into consideration (track layout and profile; topography; racing trajectories; adjacent areas, buildings and constructions) as well as the speed attained at any point of the track. Although when circumstances permit it may be appropriate to provide sufficient obstacle- and spectator-free spaces for the energy of a car leaving the track out of control to be completely expended, it is most frequently necessary or preferable to contain an accident in relative proximity to the trackside, by absorbing the car’s energy and/or providing conditions for the driver to regain control. In order to achieve this, various deceleration systems and energy-dissipating and stopping barriers may be installed to constitute a first line of protection. The type of installation to be considered is dependent on the available space and the likely impact angle. As a general principle, where the estimated impact angle is low a continuous, smooth, vertical barrier is preferable, and where it is high energy dissipating devices and/or stopping barriers should be used, combined with a run-off area and deceleration system if there is sufficient suitable ground available. It is therefore indispensable to provide for sufficient space at such points in the planning stage. Such areas will be principally situated on the exterior of the corners and may typically have depths from around 30 m to 100 m, according to the approach and cornering speeds expected on the track.
The run off evaluations are not done willy nilly. There is a scientific approach behind it and there are real standards that are being applied to new and old circuits. One only has to take a look at what CoTA has done or what was done over the last 10 years in Spa to understand how hugely expensive it is to bring new and existing circuits up to the ever evolving safety standards.
If that work hadn't been done by the FiA Institute (under Prof Sid Watkins founded by Max Mosley) there would be several F1 drivers dead who still live to entertain us and to testify to the effectiveness of the FiA safety policies.