Cuban_8 et all,
Just to expand a bit on Scott's post;
In the U.S., depending on Class Airspace, we may only need provide target resolution (green between) between IFR/VFR aircraft. Of course, we still have to create a sequence on final that works, but the Cherokee on downwind may be quite close.
Also, where parallel runways are separated by 4300' or more, we need only include a statement on ATIS that simultaneous visual approaches are in use, and we can run side by side visuals
without necessarily getting visual separation between aircraft. So you may have a "wingman" about 4/5ths of a mile to one side. Relevant para from 7110.65 follows:
7-4-4. APPROACHES TO MULTIPLE RUNWAYS
a. All aircraft must be informed that approaches are being conducted to parallel/intersecting/converging runways. This may be accomplished through use of the ATIS.
b. When conducting visual approaches to multiple runways ensure the following:
1. Do not permit the respective aircrafts' primary radar returns to merge unless visual separation is being applied.
2. When the aircraft flight paths intersect, ensure standard separation is maintained until visual separation is provided.
c. In addition to the requirements in para 7-2-1, Visual Separation, para 7-4-1, Visual Approach, para 7-4-2, Vectors for Visual Approach, and para 7-4-3, Clearance for Visual Approach, the following conditions apply to visual approaches being conducted simultaneously to parallel, intersecting, and converging runways, as appropriate:
1. Parallel runways separated by less than 2,500 feet. Unless standard separation is provided by ATC, an aircraft must report sighting a preceding aircraft making an approach (instrument or visual) to the adjacent parallel runway. When an aircraft reports another aircraft in sight on the adjacent final approach course and visual separation is applied, controllers must advise the succeeding aircraft to maintain visual separation. However, do not permit a heavy/B757 aircraft to overtake another aircraft. Do not permit a large aircraft to overtake a small aircraft.
2. Parallel runways separated by at least 2,500 feet, but less than
4,300 feet.
(a) Standard separation is provided until the aircraft are established on a heading which will intercept the extended centerline of the runway at an angle not greater than 30 degrees, and each aircraft has been issued and the pilot has acknowledged receipt of the visual approach clearance.
NOTE-
The intent of the 30 degree intercept angle is to reduce the potential for overshoots of the final, and preclude side-by-side operations with one or both aircraft in a "belly-up" configuration during the turn. Aircraft performance, speed, and the number of degrees of the turn to the final are factors to be considered by the controller when vectoring aircraft to parallel runways.
(b) Visual approaches may be conducted to one runway while visual or instrument approaches are conducted simultaneously to the other runway, provided the conditions of subpara (a) are met.
(c) Provided aircraft flight paths do not intersect, and when the provisions of subparas (a) and (b) are met, it is not necessary to apply any other type of separation with aircraft on the adjacent final approach course.
3. Parallel runways separated by 4,300 feet or more.
(a) When aircraft flight paths do not intersect, visual approaches may be conducted simultaneously, provided standard separation is maintained until one of the aircraft has been issued and the pilot has acknowledged receipt of the visual approach clearance.
(b) Visual approaches may be conducted to one runway while visual or instrument approaches are conducted simultaneously to the other runway, provided the conditions of subpara (a) are met.
(c) Provided the aircraft flight paths do not intersect, when the provisions of subparas (a) and (b) are met, it is not necessary to apply any other type of separation with aircraft on the adjacent final approach course.
4. Intersecting and converging runways. Visual approaches may be conducted simultaneously with visual or instrument approaches to another runway, provided:
(a) Standard separation is maintained until the aircraft conducting the visual approach has been issued and the pilot has acknowledged receipt of the visual approach clearance.
(b) When aircraft flight paths intersect, radar separation must be maintained until visual separation is provided.
NOTE-
Although simultaneous approaches may be conducted to intersecting runways, staggered approaches may be necessary to meet the airport separation requirements specified in para 3-10-4, Intersecting Runway Separation.
REFERENCE-
FAAO 7110.79, Charted Visual Flight Procedures.
FAAO 7110.65,Charted Visual Flight Procedures (CVFP). USA/USN Not Applicable, Para 7-4-5.
FAAO 7110.65, Separation, Para 7-7-3.