Digital Towers

Brazil: a hypothetical future state

3,457 airports assessed. 343 have no tower and meet a tier 1 to 3 rule (22 / 35 / 286). 42 towered airports fit tiers 1 to 3. A hypothetical set of 25 centres covers them. 1 public traffic source loaded.

Hypothetical. Illustrative. Not a recommendation of any authority. Every number here comes from a stated rule applied to public data. It describes a what-if, not a plan, forecast or advice to any country, airport or authority.
3,457airports assessed
343no tower, tier 1 to 3
42towered, tier 1 to 3
311isolated, tier 4
25hypothetical centres
107.9 millionpeople near a gap airport

Orange, teal, pink and grey dots are suggested tiers. Hollow rings are towered airports that fit a tier. White-ringed orange dots are hypothetical centres. Green outlined dots are remote or digital towers already listed on this site. Basemap: OpenStreetMap data via Protomaps.

What it could enable

  • Service where there is none. 343 airports have no tower but meet a traffic or infrastructure rule. Remote service could give them separation or advisory service they cannot justify as a conventional tower. About 51.8 million people live within 50 km of one of them and of no towered airport.
  • Fewer, shared positions. 42 towered airports fit tiers 1 to 3. Serving some of them from 25 shared centres could change how towers are staffed, equipped and replaced when they age.
  • Different working pattern. A centre of about 15.4 airports lets part-time airports share a controller across the day, and lets busy periods at different airports fall on different positions.
  • Awareness for isolated fields. 311 isolated airfields could get surface awareness (cameras and surveillance) without any air traffic service.

The gap in numbers

TierNo tower todayTowered today
Tier 1: Full remote tower service2231
Tier 2: Part-time remote tower356
Tier 3: Remote advisory (AFIS-like)2865
Tier 4: Surface awareness only311n/a
Large hub, left alonen/a13
Traffic on gap airports
10.9 million passengers (111 airports with a figure)
Population
212.0 million (World Bank 2024)
People in cities of 15,000+
200.4 million
Within 50 km of a gap airport
107.9 million
... and of no towered airport
51.8 million
Near only an isolated airfield
4.8 million
Airports with air-ground service already
64 of the gap airports have an AFIS-type frequency listed
Data quality. 111 of the 343 airports without a tower that meet a rule have a traffic figure; the rest are placed by runway, size class and scheduled-service flag only. Counts passengers on scheduled and non-scheduled commercial flights; general aviation movements are not included.

Candidate airports

AirportTierClassPassengersMovementsCentre
Aracaju - Santa Maria Airport
SBAR · Aracaju
Tier 1No tower, scheduled passenger service1,360,148n/a
Prof. Eribelto Manoel Reino State Airport
SBSR · São José do Rio Preto
Tier 1No tower, scheduled passenger service919,451n/a
Serafin Enoss Bertaso Airport
SBCH · Chapecó
Tier 1No tower, scheduled passenger service643,327n/a
Bahia - Jorge Amado Airport
SBIL · Ilhéus
Tier 1No tower, scheduled passenger service626,068n/a
Lauro Carneiro de Loyola Airport
SBJV · Joinville
Tier 1No tower, scheduled passenger service535,930n/a
Orlando Bezerra de Menezes Airport
SBJU · Juazeiro do Norte
Tier 1No tower, scheduled passenger service496,686n/a
Senador Nilo Coelho Airport
SBPL · Petrolina
Tier 1No tower, scheduled passenger service482,991n/a
Coronel Adalberto Mendes da Silva Airport
SBCA · Cascavel
Tier 1No tower, scheduled passenger service464,157n/a
Presidente João Batista Figueiredo Airport
SBSI · Sinop
Tier 1No tower, scheduled passenger service462,238n/a
Glauber de Andrade Rocha Airport
SBVC · Vitória da Conquista
Tier 1No tower, scheduled passenger service398,554n/a
João Correa da Rocha Airport
SBMA · Marabá
Tier 1No tower, scheduled passenger service380,016n/a
Fernando de Noronha Airport
SBFN · Fernando de Noronha
Tier 1No tower, scheduled passenger service376,836n/a
Mário Ribeiro Airport
SBMK · Montes Claros
Tier 1No tower, scheduled passenger service354,021n/a
Prefeito Renato Moreira Airport
SBIZ · Imperatriz
Tier 1No tower, scheduled passenger service333,771n/a
Hugo Cantergiani Regional Airport
SBCX · Caxias Do Sul
Tier 1No tower, scheduled passenger service278,336n/a

Hypothetical centres

Centre siteAirportsTier 1 / 2 / 3Farthest
Campo Fontenelle
Existing staffed tower facility
615 / 4 / 52288 km
Regional de Maringá - Sílvio Name Júnior Airport
Existing staffed tower facility
499 / 4 / 36446 km
Tancredo Neves International Airport
Existing staffed tower facility
447 / 6 / 31492 km
Deputado Luiz Eduardo Magalhães International Airport
Existing staffed tower facility
336 / 3 / 24500 km
Porto Alegre-Salgado Filho International Airport
Existing staffed tower facility
224 / 4 / 14495 km
Várzea Grande–Marechal Rondon International Airport
Existing staffed tower facility
292 / 3 / 24483 km
Marechal Cunha Machado International Airport
Existing staffed tower facility
205 / 1 / 14491 km
Presidente Juscelino Kubitschek International Airport
Existing staffed tower facility
311 / 1 / 29496 km
Rio Grande do Norte/São Gonçalo do Amarante–Governador Aluízio Alves International Airport
Existing staffed tower facility
195 / 0 / 14487 km
Santarém - Maestro Wilson Fonseca International Airport
Existing staffed tower facility
152 / 3 / 10497 km
Governador Jorge Teixeira de Oliveira International Airport
Existing staffed tower facility
142 / 3 / 9457 km
Brigadeiro Lysias Rodrigues Airport
Existing staffed tower facility
112 / 1 / 8498 km
Eduardo Gomes International Airport
Existing staffed tower facility
41 / 0 / 3392 km
Val de Cans/Júlio Cezar Ribeiro International Airport
Existing staffed tower facility
51 / 0 / 4481 km
Atlas Brasil Cantanhede International Airport
Existing staffed tower facility
11 / 0 / 00 km
Campo Grande Airport
Existing staffed tower facility
30 / 1 / 2292 km
Senador Petrônio Portela Airport
Existing staffed tower facility
50 / 0 / 5496 km
Porto Seguro International Airport
Existing staffed tower facility
10 / 0 / 1136 km
Santa Maria Airport
Existing staffed tower facility
10 / 1 / 0324 km
Rio Branco-Plácido de Castro International Airport
Existing staffed tower facility
10 / 0 / 1420 km
Juína Airport
New site (no existing facility in range)
40 / 2 / 2432 km
Tefé Airport
New site (no existing facility in range)
40 / 2 / 2439 km
Barra Airport
New site (no existing facility in range)
50 / 0 / 5244 km
Cruzeiro do Sul Airport
New site (no existing facility in range)
20 / 2 / 0486 km
São Félix do Xingu Airport
New site (no existing facility in range)
10 / 0 / 10 km

Responsible implementation

A tier on this page is a starting question. These are the topics any real plan would need to answer. Public guidance:

Safety case and regulator approval

Each service needs its own safety case and approval before it carries traffic. A design approval for equipment is a different step from permission to run a service. This site's records name no regulator for Brazil yet; the national supervisory authority would decide.

Controller workforce and training

Remote work changes the job: new displays, new failure modes, and new competence checks. A plan would cover who moves, who trains, how existing controllers choose, and what happens to current staff and their conditions.

Communications and surveillance

Radio, video and surveillance links must meet the latency and quality the safety case assumes. Tier 1 and 2 airports need reliable cameras, redundant links and a surveillance picture for traffic that radar or ADS-B cannot see from the ground.

Contingency and redundancy

Every centre needs a fallback: a second path for data, a backup position, and a rule for what the airport does when a link fails (hold, divert, revert to advisory). Centres that serve many airports need a plan for losing all of them at once.

Cybersecurity

A centre is a single high-value target. It needs the same protections as other air traffic systems: segmented networks, supply-chain checks, logging, and tested recovery.

Community and labour engagement

Airports, airlines, pilots, unions, local governments and neighbours should be in the process before decisions, not after. Jobs can move away from small airports, and that is a real cost to a community.

Sources