It afforded us wide streets most of the way, because of the buses that were in the motorcade. It afforded us a chance to have alternative routes if something happened on the motorcade route. It was the type of suburban area a good part of the way where the crowds would be able to be controlled for a
great distance, and we figured that the largest crowds would be downtown, which they were, and that the wide streets that we would use downtown would be of sufficient width to keep the public out of our way.

Elm Street, parallel to Main Street and one block north, was not used for the main portion of the downtown part of the motorcade because Main Street offered better vantage points for spectators.

To reach the Trade Mart from Main Street the agents decided to use the Stemmons Freeway (Route No. 77), the most direct route. The only practical way for westbound traffic on Main Street to reach the northbound lanes of the Stemmons Freeway is via Elm Street, which Route No. 77 traffic is instructed to follow in this part of the city. ( See Commission Exhibit No. 2113, p. 34.) Elm Street was to be reached from Main by turning right at Houston, going one block north and then turning left onto Elm. On this last portion of the journey, only 5 minutes from the Trade Mart, the President's motorcade would pass the Texas School Book Depository Building on the northwest corner of Houston and Elm Streets. The building overlooks Dealey Plaza,