Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_22670216_1 (rnd VARCHAR, location VARCHAR, pole_position VARCHAR)

### Question ###
If the location is Brooklyn, Michigan and the pole position is Bobby Unser, what is the RND total number?

### Accurate SQL ###

SELECT COUNT(rnd) FROM table_22670216_1 WHERE location = "Brooklyn, Michigan" AND pole_position = "Bobby Unser"