No public street-tree inventory has been published for Speedway, so species counts are UNVERIFIED. Because the residential core finished building out by the mid-1950s and has barely been rebuilt since, much of the yard canopy is likely of comparable age and large enough to close over narrow streets and 40-to-50-foot lots — an inference from build-out dates, not a measured finding. The exception is Main Street, where a town streetscape reconstruction installed all-new landscaping, so those trees are recent. That context matters for arborvitae: it is the default privacy hedge in every central indiana subdivision, and the two things that end them are deer and ice. Removing an arborvitae around Speedway runs roughly $100–$700, and in Old Speedway City (Speedway Historic District), Speedway Manor and Main Street corridor access is usually what decides where in that range you land.
What's actually growing in Speedway
No public street-tree inventory has been published for Speedway, so species counts are UNVERIFIED. Because the residential core finished building out by the mid-1950s and has barely been rebuilt since, much of the yard canopy is likely of comparable age and large enough to close over narrow streets and 40-to-50-foot lots — an inference from build-out dates, not a measured finding. The exception is Main Street, where a town streetscape reconstruction installed all-new landscaping, so those trees are recent.
Speedway's housing stock, and what it means for tree size
Speedway was laid out in 1912 as a residential suburb by Indianapolis Motor Speedway founders Carl Fisher, James Allison, Frank Wheeler and Arthur Newby — a "horseless city" for auto-industry workers. The Speedway Historic District (41.6 acres, 304 contributing buildings, NRHP September 15, 2005) built out from about 1912 to 1955 in Foursquare and Craftsman bungalow styles; the town then more than doubled, from 5,498 people in 1950 to 14,523 in 1970, and new single-family construction has been close to nil since the 1990s.
What's specific to arborvitae
Ice is the defining structural event — multi-stemmed and globe forms have no single dominant trunk, so an ice load splays the stems outward from the center, the bark tears at the union, and they stay splayed permanently. Tying multi-stem plants before winter or cabling the leaders on larger specimens is the standard preventative, and because the plants are small this is a cosmetic and replacement-cost problem rather than a property-damage one.
Marion County rules
Indiana has no statewide tree removal permit, and no Speedway ordinance requiring a permit to remove a tree on private property is documented in the sources reviewed. Important caveat: Speedway is an excluded town under Unigov and maintains its own municipal code separate from Indianapolis, and the full Speedway code text could not be retrieved, so the exact local text is UNVERIFIED. Marion County's zoning ordinance does state a purpose of protecting and enhancing tree cover and the countywide code carries a "Trees and Flora" chapter, but the section citations are unconfirmed and whether they bind Speedway is unconfirmed. Call the Speedway Street Department before touching anything near the street line.